Merge pull request #33 from mtola/master

v0.47.0 - texture support - PLY format only (with vertex texture u,v information)
texture activation fix for Linux
doc update
Merge branch 'master' of git://github.com/MEPP-team/MEPP
doc update
Merge branch 'master' of git://github.com/MEPP-team/MEPP
v0.47.1 - fix a bug on Linux for COFF reading - add icons for texture