Flashtool v0.6.9.1

* 0.6.9.1 :- Moved TA Editor and TA Backup&Restore to dev features. 

Can be enabled in config.properties (devfeatures=yes)  Take care with this feature. It can easily break your phone.

* 0.6.9.0 :
- Added official recognition of LT26 (Xperia S)
- Added a TA Backup&Restore
- Added a TA Editor
- Added a BootLoader Unlock plugin for 2011 and 2012 devices
- Added a command line option to get IMEI (FlashTool -console --action=imei)
- Added ability to flash system.img from fastboot toolbox
- Added greek language
- Added Xperia S to drivers installation