[droid] remove unnecessary logging on touch input events
turn EVENT_RESULT enum values into flags
[win32] adjust touch gesture handling
input: implement touch input through mappable actions
input: re-organize touch input handling to make it more generic and move it into its own lib
touch: add touch gesture detectors for pinch/zoom, rotate and swipe
touch: make the touchscreen's DPI available to gesture detectors
CSlideShowPicture: add m_bCanMoveVertically
slideshow: use swipe left/right gestures instead of manual swipe detection based on pan gesture
[ios] - add unified gesture handler to ios xcode project
[ios] - use generic touch handler
[ios] - implement swipe support
[touch] add a mapping for 2 finger swipeleft (Back) as it was before on iOS because of lack of hw back button
[FIX] CXImage: Don't call functions on unopened DllImageLib
Merge pull request #2389 from Fice/cximage_null_pointer_exception

FIX: don't free a null pointer in CXImage
Merge pull request #2135 from Montellese/touch_input

generic & user-mappable touch input system