Vim: update bundle

Mostly to peg at the tip of the Command-T "next" branch, but updating
everything while I'm at it.

Submodule changes to be committed:

* .vim/bundle/command-t f9d168c...20b5fec (19):
  > Speed up WatchmanFileScanner by an order of magnitude
  > Add "watchman" file scanner and accompanying documentation
  > Remove contrib directory
  > Finally commit of fswatcher files
  > Simplify requiring of db and argv modules
  > Exit on showing help
  > Move options parsing into separate file
  > Move DB wrapper into a separate file
  > Disperse row operations during benchmarking
  > Add args passing to fswatcher
  > Add some more DB operations to complete benchmarks
  > Add #bind method for use with prepared statements
  > Add partial work-in-progress of fswatcher process
  > Fix typo in Controller#delete method
  > Silence potentially noisy stderr from `find` command
  > Silence a warning from Linux `find`
  > Add `find`-based scanner
  > Move FileScanner into a FileScanner::RubyFileScanner subclass
  > Debounce key-presses to improve responsiveness

* .vim/bundle/emmet-vim afb2086...554e0c0 (1):
  > Look Content-Type for ^YA. closes #188

* .vim/bundle/rails 0f97e08...ec52270 (1):
  > Merge pull request #301 from a2ikm/support_change_column_null

* .vim/bundle/ultisnips ae611cc...dc00dd9 (15):
  > Added a preliminary pylintrc to the project.
  > util -> indent_util
  > Done with simplifying __init__.py.
  > Moved SnippetsFileParser into a file of its own.
  > Moved SnippetDictionary into a file of its own.
  > Moved VisualContentPreserver into its own file.
  > Moved some code from __init__.py into a file of its own.
  > Whitespace cleanups.
  > Some minor refactorings.
  > Merge pull request #136 from aeruder/master
  > Be when to map Forward and Backwards Trigger
  > Try hard to retain the unnamed register. Patch by Gernot Höflechner - LFDM.
  > Merge pull request #135 from ivanbrennan/fix-rails-form_for
  > Merge pull request #132 from vitalk/jsdoc-snippets
  > Merge pull request #131 from slagtermaarten/master

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Update submodules to use HTTPS URLs

It's generally pretty easy to get to an HTTP proxy when inside a
corporate firewall, but a Git protocol proxy is less likely.

It's true that not all builds of Git come with HTTPS support, but it is
relatively common.

Signed-off-by: Wincent Colaiuta <win@wincent.com>
Vim: add vim-markdown plugin as a submodule

I am sick of having ".md" files classified as Modula-2. I've never seen a
Modula-2 source file, and doubt I ever will:

  http://en.wikipedia.org/wiki/Modula-2

Signed-off-by: Wincent Colaiuta <win@wincent.com>