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
Fixes #212: Incorrect Frame Type Classification
Addition of new Airspeed pin configuration interface, including new sensor types
Addition of more debug output in the SerialLink
Change so on connection, parameter widgets are loaded in a timer, to prevent the UI from locking up when loading standard and advanced parameter pages. Also a fix for #216, where params weren't being updated if they were created after the initial fetch of parameters
Add Frame Parameter Loading to Frame Type View
Remove Load Parameter View
Remove Firmware Option Buttons unless advanced mode selected
Update to RC4
Code and comment cleanup
Fix for application log files getting corrupt once a full cycle of files exists
Commit of APM/Pixhawk drivers, as well as OpenSSL installer downloader in the NSIS installer package
Fixes #219: Fixes problem with directory settings not being remembered across restarts