updated license headers
updated license.html
release v1.6
fixed release notes
doxygen version update
Merge pull request #28 from Tectu/master

Merge Tectu Changes
Reinsertion of doxygen headers

Reinsertion of doxygen headers that got lost in license change
Merge pull request #67 from inmarket/master

Reinsertion of doxygen headers
Image Decoder Fixes

Fixes to memory allocation for BMP and NATIVE
Fixes to source offset images for GIF
Merge pull request #68 from inmarket/master

Image Decoder Fixes
More Image Fixes

GIF Interlaced offset Fixes and area reveal offset fixes
Merge pull request #69 from inmarket/master

More image fixes
Merge pull request #29 from Tectu/master

Merge Tectu Changes
TDISP fixes
TDISP fixes
TDISP demo fix
X driver for GDISP and GINPUT_MOUSE
Merge pull request #70 from inmarket/master

X11 Driver for GDISP and GINPUT MOUSE
cleanup & tdisp warning fix
added gwin enabled parameter and implemented button enable/disable functions