Update submodule vim/bundle/tmru e7f223d...45d5128

* vim/bundle/tmru e7f223d...45d5128 (9):
  > Improved synchronization of mru lists across multiple instances of vim (fixes #26)
  > Normalize filenames when registering a buffer; minor improvements
  > Fix problem on windows (val -> v:val)
  > misc
  > docs
  > Mark files as persistent/sticky (i.e. the won't be removed from the list)
  > File properties again (only if viminfo is not used)
  > Set g:tmruSize dependent on whether viminfo is used
  > misc