remove trailing spaces in .vimrc

Fixes #59
change <leader>p mapping to :CtrlPTag

Change from :CtrlP to :CtrlPTag, which allows search of generated ctags

Fixes #56
disable phpcomplete plugin Ctrl+] mapping

This mapping was causing a problem whenver switching between two
existing PHP files.

Fixes #62
Merge pull request #63 from salcode/already-definted-ctrl-bracket-error

disable phpcomplete plugin Ctrl+] mapping
Merge pull request #61 from salcode/map-leader-p-to-ctrlptag

change <leader>p mapping to :CtrlPTag
Merge pull request #60 from salcode/remove-trailing-spaces

remove trailing spaces in .vimrc