Heavy vim plugins refactor
Heavy vim plugins refactor

* Add Gundo plugin to visualize and manipulate undo tree
* Add Gitv plugin to visualize Git repository history
* Replace fix-whitespace by betterwhitespace (more complete)
* Remove CtrlPFunky which duplicates TagBar
* Refactor plugins.vim for easier mappings identifications

jpigree/manarch,jpigree/config,jpigree/manarch