Allow to use the flag 'a' in the transformation commands.
This way, in a Latex file written with accentueted letters, the label use non accentueted letters instead of _.
Add an error message when unidecode is not installed. The message is displayed only one time
Add a documentation to the 'a' flag
Add two additional tests for the 'a' flag in the transformation
Improve the documentation
Update tests to make test -a option only when unidecode is installed
Merge branch 'master' of git://github.com/rgiot/ultisnips into rgiot-master
Fixed a small bug.
Feature: a option for converting into ASCII before transforming. Patch by rgiot.