Update submodule vim/bundle/unite-outline 3ee63cd...bf49abe

* vim/bundle/unite-outline 3ee63cd...bf49abe (13):
  > Use "Normal" instead of g:unite_abbr_highlight
  > Merge pull request #34 from rhysd/add/swift
  > Merge pull request #33 from rhysd/support/go
  > Merge pull request #32 from rhysd/support/go
  > Merge pull request #31 from todesking/scala-val-var-types
  > Merge pull request #30 from sgrj/magma
  > Merge pull request #29 from sgrj/tex
  > Merge pull request #28 from crazymaster/master
  > Merge pull request #26 from Townk/master
  > Merge pull request #25 from Townk/master
  > Improve ctags check
  > Add ctags error message
  > Fix #24 cache problem