Merge branch 'release' into release_python2.3
Merge branch 'master_python2.3' into release_python2.3
Merge branch 'release' into release_python2.3
Merge branch 'master_python2.3' into release_python2.3
Merge branch 'release' into release_python2.3
Merge branch 'release' into release_python2.3
Merge branch 'release' into release_python2.3
Merge branch 'master' into release
Merge branch 'release' into release_python2.3
Merge branch 'master_python2.3' into release_python2.3
Putting back Travis.
Python 3 manual installation more explicit. Added one feedback quote. Fixed text typo in example.
Merge branch 'release' into release_python2.3
Merge branch 'release'
Merge branch 'release_python2.3' into master_python2.3
Merge branch 'master' into master_python2.3