Ability to replace certain words

[GoogleCodeExporter]

Users should be able to tell which words should be deasciified how.

For example currently "turuncgiller" is converted to "turuncğiller". User 
should be able to change it to "turunçgiller" permanently whenever a 
deasciification is done.

Additionally, the pattern list may be updated on the fly to increase accuracy.

Original issue reported on code.google.com by meacer on 30 May 2011 at 12:07