Big update in plugins

Update vundle: use "plugin" keyword.

Change powerline for airline (vim specific)

Change gitgutter for Signify (more general)

Add necomplete
Add repeat
Add easymotion

Add todo with Minimap (based on Severin's version)

Update keymapping
Move common plugins option to the common vimrc file
Remove powerline related stuff from install script
Update mapping for tabedit
Update url linking keymapping
Update mapping for pdb
[spell] Add new French word
Add reminder for Surround plugin
Omnicompletion: setlocal
NeoComplete: params and first keymapping