Loading working-directory scripts and key re-mapping

If your folder has "Session.vim" or "local.vim" they are loaded on
startup. When entering/reading a file it looks for "%.vim" and loads it
if it exists, i.e., "amir.cpp.vim" will be sourced when opening
"amir.cpp".
Unhiding '.vim' and '.vimrc' and changing the whole directory structure
Added OmniCppComplete again... damn git