bzr-grep 0.4.0 released

Written for bzr-grep by Parth Malwankar on 2010-06-08

Changes since 0.3.0.

* Add seperate output formatter to reduce duplication of search loops,
  additionally make -Fi use regexp rather than lowercasing pattern and
  entirety of text for the same reason. This also fixes bug #590589
  - UnicodeDecodeError with options -Fi. (Martin [gz])

* Added fast path for no match that avoids splitting the file text into
  seperate lines and testing each one, by checking the entire text for a
  possible match initially. (Martin [gz])

* Added Makefile. (Parth Malwankar)

* Fixed setup.py to work correctly. (Martin [gz])