started writing compilation doc
Added xml output to gtest
changed parameter ordering for gtest output
Merge pull request #24 from ethz-asl/feature/gtest_xml_output

Add xml output to gtest for continuous integration server
Merge pull request #22 from oleg-alexandrov/inspector

Fine level control of the Inspector module.
Finished compilation tutorial, needs proofreading
fixed compilation file extension
wrote basic registration tutorial and description of default ICP configuration
Merge branch 'master' of https://github.com/ethz-asl/libpointmatcher

Merging recent code changes
added image to car example
added code highlighting basic registration doc
fixed highlighting