update the poco formula for linuxarmv7l and add it to the valid types

Built and tested on the ODROID-U3/Xubuntu 13.10 as part of openFrameworks #2823.
Merge pull request #29 from pizthewiz/linuxarmv7l-poco

support linuxarmv7l in poco formula
Create PROGRESS.md
Formatting update.
GLFW & videoInput OK for VS
FreeType build for VS (not working...)
Try local checkout before fetching distant repo
POCO & Tess2 also ok for VS
Merge pull request #32 from LeoColomb/vs

Vs Updates
Merge pull request #31 from LeoColomb/switch-improve

Try local checkout before fetching distant repo
Added free type