Use the global bundles instead of reinitializing
Help maintain Vundle section
Fix #374 shellescape problem
Fix shellesc()
Some documentation fixes and changes

1. Fixed some lines which were wider than 78 characters.
2. Added a couple of more borders above all the sub-sections.
3. Moved about part above the TOC, seems unnecessary to have that as its
own section when it's so small. This also look more like a  default vim
help file.
4. Changed "NOTE:" into "Note that" because that is more like how it's
used in default vim files.
5. Changed some wording like "the plug-in manager" to "a
plug-in manager".
6. Moved a couple of *tag names* below their headings so it's like that
everywhere in the file.
Language fixes after notes from @starcraftman
Merge pull request #385 from marlun/doc-fixes

Some documentation fixes and changes to the VimDocs.
Updating the readme to be clearer.
Merge pull request #393 from starcraftman/readme_changes

Merging in new updated README. Wiki changes will be updated as well.
Adding CONTRIBUTING file with guidelines for PRs and issues.
Merge pull request #392 from starcraftman/add_contrib

Add A CONTRIBUTING.md file to root.
fixed test/vimrc
fixes helptags and wildigore issue #390

- resolve introduced in 08e9894d2 resolves only bundle dir
- so '/doc/' dir doesn't loose its trailing slash
docs: explain directory argument to :Bundle

Add some documentation to explain the directory argument (optional second
argument) to the Bundle command.  Maybe fixes #295
Merge pull request #394 from lucc/issue-295

vundle.txt update: explain directory argument to :Bundle & fix Vundle path
Updated vundle.txt to align with new README.
Merge pull request #395 from starcraftman/vimdoc_cleanup

Vimdoc Update Based On New Readme
Don't touch 'ignorecase'

Should fix #231.
Merge pull request #242 from techlivezheng/feature/use-global-bundles

Use the global bundles instead of reinitializing
Make bundle options visible to installer

Bundle configuration options that are inferred from the bundle specs
overwrite user provided ones. This used to prevent users from changing
the name of directory where the cloned bundle should go, for instance.

Keep the user provided options with a preference over inferred ones.