hooks to filter and modify identified metadata
use timezone-aware now()
update wq.io version
v0.6.1
update version
pass known metadata on to choice filter
tests for patterns.locate and geometry fields

 - fix default SRID
 - fix geometry parsing for non-LocatedModels
2to3, replace __unicode__ with __str__
restrict searches by type; reduce occurence of duplicate results
fix distinct() usage; add authority filter
record identifiers found in io instance
pass request to queryset filter if applicable
faster config loading
faster relationship serialization
better cache key
support multiple folder levels
with_models is no longer used
reset config cache after add_page()
not ready for Django 1.7; test with DRF 1.4
v0.6.2