yarp-config now handles context and robot files.
Moving diff-patch library to extern directory [thanks paulfitz]
[ResourceFinder] added getHomeContextPath and getHomeRobotPath
Added tests for RF::getHomeContextPath
RF::getHomeRobotPath() : changed implementation and added test
Merge pull request #86 from elen4/rfAPI

adding methods to ResourceFinder to retrieve locations for writing data
Mark yarp::os::ResourceFinder::getContextPath() as deprecated
Merge pull request #78 from elen4/yarpconfig

yarp-config handling context and robot files