Update submodule vim/bundle/airline ce32405...06a96d6

* vim/bundle/airline ce32405...06a96d6 (7):
  > blueyed: customizations
  > improve performance when showing tabs in the tabline (#326).
  > specify maximum for whitespace checking. resolves #378.
  > Merge pull request #379 from phy1729/master
  > Merge pull request #380 from zeis/master
  > Merge pull request #377 from blueyed/eclim-filter-signs
  > Merge pull request #375 from qstrahl/master
vim: airline: use my fork