12/SEP/2011: Potential error while 'svn update'ing MRPT... and how to solve it

SITUATION: 

After updating the SVN repository of MRPT to revision 2651 (or newer) you may have errors like these:

svn: Failed to add file 'samples/captureVideoFFmpeg/CMakeLists.txt': an unversioned file of the same name already exists
(or any other:)
svn: Failed to add file 'samples/.../CMakeLists.txt': an unversioned file of the same name already exists

If never built MRPT with BUILD_EXAMPLES=ON this error won't affect you.

SOLUTION:

The easiest workaround is to delete the entire directory {MRPT_SOURCE_DIR}/samples and issuing a new svn update command, which will recreate everything as needed.

REASON OF THIS CHANGE:

Since the origin of times, the CMakeLists.txt files in the directories samples/*/ were not uploaded to the SVN repository but generated "on the fly" from some templates when the user checked BUILD_EXAMPLES=ON. 

However, those scripts were intended to live within the main MRPT source tree and that caused a lots of problems to users not experienced with CMake. 

In the new way, all CMakeLists.txt files are ready to be copied to a new directory and serve as a base for developing user programs from the examples code.

I'm sorry for the incoveniences this change may cause, but was something that would have been done sooner or later.