diff --git a/.ackrc b/.ackrc
new file mode 100644
index 0000000000000000000000000000000000000000..6268ded9935795646809491b7c3e665302b4db17
--- /dev/null
+++ b/.ackrc
@@ -0,0 +1 @@
+--ignore-dir=doc
diff --git a/README.md b/README.md
index c40af9f04c979c2c20cab3e591c35f0c5b06cb3d..ac22acbd7de728c767bd37269ea51563a409a3a8 100644
--- a/README.md
+++ b/README.md
@@ -44,7 +44,7 @@ You need to install Qt like this instead of using packages from say a Linux dist
 
 ###### Install additional packages:
 * Ubuntu: sudo apt-get install espeak libespeak-dev libudev-dev libsdl1.2-dev
-* Fedora: sudo yum install espeak espeak-devel SDL-devel SDL-static systemd-devel
+* Fedora: sudo dnf install espeak espeak-devel SDL-devel SDL-static systemd-devel
 * Arch Linux: pacman -Sy espeak
 * Windows: [USB Driver](http://www.pixhawk.org/firmware/downloads) to connect to Pixhawk/PX4Flow/3DR Radio
 * Android: [Qt Android Setup](http://doc.qt.io/qt-5/androidgs.html)
diff --git a/qgroundcontrol.desktop b/qgroundcontrol.desktop
old mode 100755
new mode 100644
diff --git a/qgroundcontrol.pro b/qgroundcontrol.pro
index b8b83f0dfab1c9515941be96bdcc696f0c58eed2..8d72286c5e434a2a02e4f143dab4a22a4bcd09a4 100644
--- a/qgroundcontrol.pro
+++ b/qgroundcontrol.pro
@@ -18,7 +18,7 @@
 # -------------------------------------------------
 
 exists($${OUT_PWD}/qgroundcontrol.pro) {
-    error("You must use shadow build.")
+    error("You must use shadow build (e.g. mkdir build; cd build; qmake ../qgroundcontrol.pro).")
 }
 
 message(Qt version $$[QT_VERSION])
diff --git a/src/MissionEditor/MissionEditor.qml b/src/MissionEditor/MissionEditor.qml
index dbd2f7142aefbbf033aa1be97337dec41e96ca8b..a4279015e5358e8b6df0cc43b1e30da3396a40b3 100644
--- a/src/MissionEditor/MissionEditor.qml
+++ b/src/MissionEditor/MissionEditor.qml
@@ -742,7 +742,7 @@ QGCView {
                 width:      sendSaveRow.width
                 wrapMode:   Text.WordWrap
                 text:       syncNeeded && !controller.autoSync ?
-                                "You have unsaved changed to you mission. You should send to your vehicle, or save to a file:" :
+                                "You have unsaved changes to you mission. You should send to your vehicle, or save to a file:" :
                                 "Sync:"
             }