read_csv: added dtype dictonary for columns
port to python3
fix on python2
improved info(), and made it the same for x32 and x64 on python2 (don't print those pesky L suffixes)
fix merge
fixed read_csv on python3, and added test for read_csv
my first crack at adding travis CI
2nd try
take 3
take 4
take 5...
Create README.rst
add comments
added test for multiple VG targeted by their name
Merge branch 'master' into novgticks

Conflicts:
	larray.py
change isscalar tests to contains, as it is really what we need to test
cleanup and comments
add a few tests (notably for named groups) and fixed some tests (mostly the contains tests I just introduced)
all tests pass! After all keeping ValueGroup ticks does not make things more complicated, so I added them back in!
    * to_label adds a ',' at the end of lists of one elements
    * accept python3 range objects as an Axis ticks
    * fixed targeting a VG tick by its name