Fix a typo
Merge branch 'master' of github.com:jbarnoud/splitleafs
Test that input file opens properly
Try travis
Fix a minor typo in the readme
try to fix tavis build
Try to be compatible with python 2.5
Do not ask travis to install argparse for python version > 2.6
Try to improve python 3 compatibility and add a test
There is no point at being compatible with python 2.5
Python 3.3 seems to need explicit intallation of nosetests
Python 3 does not have dist.iteritems
python 3.3 does not seem to work properly on travis
Add travis status in the readme
More tests
Clean test output
Fix minor PEP 8 issues
Handle heterogeneous membranes

The -a/--atom option can now take several arguments to handle
heterogeneous membranes. The new format is "resname:atom_name". The
residue name can be omitted, then the format is just "atom_name".

This new feature does not break previous behavior.

The changes are undertested. The test suite still needs to be adapted so as
the error messages.
Travis status picture is now a link
Fix resname reading in pdb format