Adding more DVCS support

[punassuming]

Commits add support for hg, bzr, and limited svn to Vundle.

Supports pull and clone analogs. I have also added some naming conventions in s:parse_name in config.vim to allow launchpad (lp:), bitbucket (bit:), and any mercurial website (hg:). I haven't come up with a test suite for it, but it works for me with the couple of packages I want to pull from bitbucket.

To do this, I have added an additional key to bundles, type, which holds the type of DVCS used. This value is determined either while parsing the command line, or by looking for the .git/.hg directory in the bundle path.

[gmarik]

Currently there are 2 reasons Vunlde isn't supporting anything than Git

1. Vundle indirectly supports vim-scripts.org and wants it to become central repository for all Vim plugins.
2. More DVCS mean more support and maintenance. And since @0 and myself are the ones dealing with most of the issues - we cannot guarantee that extra time(As you can see there are quite a few issues already to be worked on). Yeah, and having tests would be sweet! )

But what we could do is modify Vundle in a way that it'd allow this pluggable(ie, Vundle plugin for hg).
After v1 tho.

Let me know what you think.
Thanks!

[tub78]

I am not certain if recent performance is characteristic, but vim-scripts.org appears to be 12 days behind. Is this a concern for Vundle?

[MarcWeber]

related to #154