Adapted to latest UTFT and UTouch, and bug fixes

SimpleViews was changed to work on new UTFT(v2.0) and UTouch(v1.22)
libraries. Default touchMode was temporarily changed  to TIMER_ONLY.
Also fixed minor bugs that were causing the screen not to work.
Added a comment on mirrored screens

Added a comment on mirrored screens.
Added property to correct mirrored touchscreen

A property was created to fix touchscreen problems when the screen is
mirrored. That is, a touch in certain position is identified by a touch
in a mirrored position.
The user can modify this property if it is identified that the
touchscreen is mirrored relative to x, y, or both.
Adapted the Simple Views example to support this change.
Merge pull request #1 from maricarvalho/master

Adapted to latest UTFT and UTouch libraries. Fixed minor bugs.