Update submodule vim/bundle/color_highlight 0c7b2c2...3d98273

* vim/bundle/color_highlight 0c7b2c2...3d98273 (18):
  > Use TextChanged autocommand if possible
  > This is release 0.10
  > updated doc, prepare release
  > correctly test for emptyness
  > work around what seems to be a vim bug
  > updated todo file
  > updated doc
  > merge colorhighlight branch in (fixes #34)
  > prevent empty eval error
  > remove superflous condition
  > add ability to add custom color maps
  > escape patterns for term highlighting
  > Don't highlight colornames with a leading - (fixes #32)
  > Don't auto map keys, fixes #32
  > only clear syntax highlighting, when not using matchadding
  > check, that :keeppatterns is available
  > Merge pull request #30 from blueyed/master
  > Merge pull request #29 from blueyed/only-force-once