Add more lookup types

[GoogleCodeExporter]

Just now Djapian supports very basic lookup types (exact,gt, lt and etc).

But more advanced lookups are very usful too:

 - iexact
 - contains
 - icontains
 - startswith
 - istartswith
 - endswith
 - iendswith
 - regex
 - iregex

Original issue reported on code.google.com by daevaorn on 23 May 2009 at 6:11

[GoogleCodeExporter]

Original comment by daevaorn on 23 May 2009 at 6:37

• Added labels: Milestone-Release2.3

[GoogleCodeExporter]

Fixed with r240

Original comment by daevaorn on 25 May 2009 at 11:23

• Changed state: Fixed