Fix a formating tex tag bug.
Remove useless files.
Improve code quality, add a template directory.
usage: texsetup.py [-h] [-p TITLE FRAME_NB] [-d TITLE]
Setup easily tex document.
optional arguments:
-h, --help show this help message and exit
-p TITLE FRAME_NB, --presentation TITLE FRAME_NB
-d TITLE, --document TITLE