Renamed README files and .plugin

(cherry picked from commit ae265267624eb6af09c340558d01466f3376523e)

Conflicts:
	README.rst
	reST.plugin
	reSt.gedit-plugin
	reSt.plugin
Renamed plugin folder, adapted .plugin file for GEdit v3.8
Updated technical details in documentation, removed french README from /

Conflicts:
	README_fr.rst
Changed IAge, name and description in .plugin; minor corrections to README

(cherry picked from commit d2bd403aa93111ba0b717eae18126aeb33b61525)
Replaced old broken imports, ported makeTable to Python3

(cherry picked from commit a3ecd9a2253e929591ffb7b268bc602da31af4ea)

Conflicts:
	reST/__init__.py
reST syntax highlighting configuration added