[FIX]:changed char to text :In Manage filters, the field Domain Value and...

[FIX]:changed char to text :In Manage filters, the field Domain Value and context is limited to 250 characters making it impossible to use a saved  filter of more than 250 characters

bzr revid: nch@tinyerp.com-20100723061704-x9n3dt0qghuno1oo