refactored bootstrap.sh into seperate functions. Fixed an installer bug that caused dead and circular symlinks and also failed at git clone.
Fixed incorrect quoting and closing issue #190 and similar problems with vundle.
re-enabling backup script
refined do_backup(), removed lnif(), added fork_maintainer flag, creating empty .vimrc.local now
Update bootstrap.sh

Replacing _#!/usr/bin/env_ bash with _#!/bin/bash_
Update bootstrap.sh

Changed shebang to use "/bin/bash" by default.
Update bootstrap.sh
Merge pull request #403 from X4/3.0

Closing Issue #400; Fixing installer script of spf13-vim