diff --git a/.travis.yml b/.travis.yml
index a8635c72647b092e789a956b249c3d34574d6921..f234d8dedc49b1b118ed1fb4ef72928fe6392303 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -8,24 +8,22 @@ git:
 matrix:
     include:
         - os: linux
-          env: CONFIG=release
+          env: SPEC=linux-g++-64 CONFIG=debug
         - os: linux
-          env: CONFIG=debug
+          env: SPEC=linux-g++-64 CONFIG=installer
         - os: osx
           osx_image: beta-xcode6.3
-          env: CONFIG=release
+          env: SPEC=macx-clang CONFIG=debug
         - os: osx
           osx_image: beta-xcode6.3
-          env: CONFIG=debug
+          env: SPEC=macx-clang CONFIG=installer
 
 cache:
   - apt
 
 before_install:
   - cd ${TRAVIS_BUILD_DIR} && git fetch --unshallow && git fetch --tags
-  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then mkdir -p $HOME/Library/Preferences/QtProject/ && echo "[Rules]\n *Log.debug=false" >> $HOME/Library/Preferences/QtProject/qtlogging.ini; fi
-  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then cp ${TRAVIS_BUILD_DIR}/test/qtlogging.ini ~/Library/Preferences/; fi
-  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then cp ${TRAVIS_BUILD_DIR}/test/qtlogging.ini ~/Library/Preferences/QtProject/; fi
+  - if [ "${TRAVIS_OS_NAME}" = "osx" ]; then mkdir -p $HOME/Library/Preferences/QtProject/ && cp ${TRAVIS_BUILD_DIR}/test/qtlogging.ini ~/Library/Preferences/QtProject/; fi
 
 install:
   - if [ "${TRAVIS_OS_NAME}" = "linux" ]; then
@@ -50,7 +48,7 @@ install:
     fi
 
 
-before_script: qmake CONFIG+=${CONFIG} -r qgroundcontrol.pro
+before_script: qmake -r qgroundcontrol.pro CONFIG+=${CONFIG} CONFIG+=WarningsAsErrorsOn -spec ${SPEC}
 script:
   - echo 'Building QGroundControl' && echo -en 'travis_fold:start:script.1\\r'
   - make -j4
@@ -60,15 +58,15 @@ script:
   - if [[ "${TRAVIS_OS_NAME}" = "osx" && "${CONFIG}" = "debug" ]]; then ./debug/qgroundcontrol.app/Contents/MacOS/qgroundcontrol --unittest; fi
   - echo -en 'travis_fold:end:script.2\\r'
 
-#deploy:
-#  provider: releases
-#  api-key:
-#    secure: ""
-#  file: "release/qgroundcontrol"
-#  skip_cleanup: true
-#  on:
-#    tags: true
-#    all_branches: true
+deploy:
+  provider: releases
+  api-key:
+    secure: ""
+  file: "release/qgroundcontrol.dmg"
+  skip_cleanup: true
+  on:
+    tags: true
+    all_branches: true
 
 notifications:
   webhooks:
diff --git a/src/AutoPilotPlugins/PX4/RadioComponentController.cc b/src/AutoPilotPlugins/PX4/RadioComponentController.cc
index f18f2055a4148a1fa88ffa9a8e1ce986f1f57437..e251c253264e30b9469df8e61ec5d7949c12cb60 100644
--- a/src/AutoPilotPlugins/PX4/RadioComponentController.cc
+++ b/src/AutoPilotPlugins/PX4/RadioComponentController.cc
@@ -624,7 +624,7 @@ void RadioComponentController::_inputFlapsDetect(enum rcCalFunctions function, i
 void RadioComponentController::_resetInternalCalibrationValues(void)
 {
     // Set all raw channels to not reversed and center point values
-    for (size_t i=0; i<_chanMax; i++) {
+    for (int i=0; i<_chanMax; i++) {
         struct ChannelInfo* info = &_rgChannelInfo[i];
         info->function = rcCalFunctionMax;
         info->reversed = false;
@@ -673,7 +673,7 @@ void RadioComponentController::_setInternalCalibrationValuesFromParameters(void)
 {
     // Initialize all function mappings to not set
     
-    for (size_t i=0; i<_chanMax; i++) {
+    for (int i=0; i<_chanMax; i++) {
         struct ChannelInfo* info = &_rgChannelInfo[i];
         info->function = rcCalFunctionMax;
     }
@@ -865,7 +865,7 @@ void RadioComponentController::_stopCalibration(void)
 void RadioComponentController::_rcCalSaveCurrentValues(void)
 {
 	qCDebug(RadioComponentControllerLog) << "_rcCalSaveCurrentValues";
-    for (unsigned i = 0; i < _chanMax; i++) {
+    for (int i = 0; i < _chanMax; i++) {
         _rcValueSave[i] = _rcRawValue[i];
     }
 }
diff --git a/src/VehicleSetup/FirmwareUpgradeController.cc b/src/VehicleSetup/FirmwareUpgradeController.cc
index 66992cdc37e580b1b48ee53988e480a6f4592c62..852c997633f0145689c15589c53ec323e8a27833 100644
--- a/src/VehicleSetup/FirmwareUpgradeController.cc
+++ b/src/VehicleSetup/FirmwareUpgradeController.cc
@@ -206,7 +206,7 @@ void FirmwareUpgradeController::_getFirmwareFile(FirmwareType_t firmwareType)
     // Select the firmware set based on board type
     
     const DownloadLocationByFirmwareType_t* prgFirmware;
-    size_t crgFirmware;
+    size_t crgFirmware = 0;
     
     switch (_bootloaderBoardID) {
         case Bootloader::boardIDPX4FMUV1:
diff --git a/src/VehicleSetup/JoystickConfigController.cc b/src/VehicleSetup/JoystickConfigController.cc
index 66942d2ed54b372656aee69f1f06374e9975bada..41dc552dd2db403cba8636176647cdb963dbe610 100644
--- a/src/VehicleSetup/JoystickConfigController.cc
+++ b/src/VehicleSetup/JoystickConfigController.cc
@@ -411,7 +411,7 @@ void JoystickConfigController::_inputCenterWait(Joystick::AxisFunction_t functio
 void JoystickConfigController::_resetInternalCalibrationValues(void)
 {
     // Set all raw axiss to not reversed and center point values
-    for (size_t i=0; i<_axisMax; i++) {
+    for (int i=0; i<_axisMax; i++) {
         struct AxisInfo* info = &_rgAxisInfo[i];
         info->function = Joystick::maxFunction;
         info->reversed = false;
@@ -435,7 +435,7 @@ void JoystickConfigController::_setInternalCalibrationValuesFromSettings(void)
     
     // Initialize all function mappings to not set
     
-    for (size_t i=0; i<_axisMax; i++) {
+    for (int i=0; i<_axisMax; i++) {
         struct AxisInfo* info = &_rgAxisInfo[i];
         info->function = Joystick::maxFunction;
     }
@@ -580,7 +580,7 @@ void JoystickConfigController::_stopCalibration(void)
 void JoystickConfigController::_calSaveCurrentValues(void)
 {
 	qCDebug(JoystickConfigControllerLog) << "_calSaveCurrentValues";
-    for (unsigned i = 0; i < _axisMax; i++) {
+    for (int i = 0; i < _axisMax; i++) {
         _axisValueSave[i] = _axisRawValue[i];
     }
 }