[gaze I/F]: just doc
fixed doc typo
fixed doc typo
Fix a few cmake versions checks
Fix link to latest development version.

Also properly mark it as a "development" version instead of "stable"
add publisher/subscriber helper classes
add missing return value
make AbstractContactable symbols visible in libYARP_OS dlls on windows

see #196
test and fix callbacks in BufferedPort class

fixes #198, thanks @pattacini for catching this
fixed bug on VirtualAnalogWrapper sending zeros after timeout
Merge branch 'master' into InteractionMode