merge Ben's thread changes
changes to android source
Merge branch 'devel_week12' of https://github.com/fernandomdo/roomba_pp into devel_week12
Merge branch 'devel_week12' of https://github.com/fernandomdo/roomba_pp into devel_week12
changes to android app
few more changes to cmake so that linux-mpu9150 compiles correctly
Merge branch 'devel_week12' of https://github.com/fernandomdo/roomba_pp into devel_week12
Merge branch 'devel_week12' of https://github.com/fernandomdo/roomba_pp into devel_week12
changes to .gitignore, workspace.xml