Added libqt4-opengl-dev to install instructions

libqt4-opengl-dev is required to provide QtOpenGL
Suggest qmake command in README

qtmake-qt4 doesn't exist on Ubuntu Saucy, but qmake does.
Added libudev-dev package to install instructions

Needed for firmware flashing feature to detect the serial port.

As reported in #168
fix 'qmake-qt4 qgroundcontrol.pro' error '/QGCSetup.pri:217: Unescaped backslashes are deprecated.'
COPTER: add 'Hybrid Loiter' (14) in Flight Mode list
widen firmware version labels to fix cutoff text
Add in a missing stdint.h include
tmp fix against missing include stint
Merge remote-tracking branch 'upstream/master' into my_retsam_branch
revert tmp uint fix
Merge branch 'my_retsam_branch' into apmplanner_armhf
more work on checklist