New plugins, refactor and improvements

+ Added neocomplcache
+ Added solarized colorscheme as submodule
+ Set solarized for gvim and molokai for vim
+ Added "sections" in vimrc and sorted things
+ Added commands for java with doxygen (and DoxygenToolkit)
~ Changed DoxygenToolkit to forked version
~ Fixed OverLenght highlight to work on every window as autcmd