Fix grammar in 'Deploying Applications to Android Devices'.

Change-Id: Ia28a312c7b5089010050d7b4481df3c9a414fa43
Reviewed-by: Leena Miettinen <riitta-leena.miettinen@theqtcompany.com>
qmakestep: correctly update qml debugging checkbox

A change of the project languages (for example when the qml code
model is updated, which happens quite late) can add or remove
the QMLJS language, and thus change the value of
linkQmlDebuggingLibrary. This should be shown in the UI.

Change-Id: I55b6a866be6d0e356ed516568124bf3e80045078
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>
Reviewed-by: Kai Koehne <kai.koehne@theqtcompany.com>
Do not show rebuild dialog when checkboxes are changed from code

Only show the "Do you want to recompile now?" modal dialog if the
"Enable QML debugging" or "Enable Qt Quick Compiler" checkboxes have
been changed directly by the user.

The previous change let the QML debugging checkbox update also when the
.pro file has changed. Showing a modal dialog in such cases interrupts
the user's flow, and is unexpected.

Change-Id: I9304cbecee7e201694ff72ac8c0f38cedf5fb416
Reviewed-by: Eike Ziller <eike.ziller@theqtcompany.com>