message: CHORE: update changelog.md before release.
diff: +## X.Y.Z (INSERT_DATE_HERE)
  +
  +#### Bug Fixes
  +- [Fix Performance regression in Regular Tokens 0.25.0.](https://github.com/SAP/chevrotain/commit/52f3f1a4a7214b2b75c2ca95b58a1ec28ccbcfbd)
  +
  +
  +
  ## 0.25.0 (3-19-2017)
  #### Breaking Changes
  