0.12.0

• #188: provides metadata as well as normal data in JSONP responses.
• #193: allows DELETE requests to related instances.
• #215: removes Python 2.5 tests from Travis configuration.
• #216: don't resolve Query objects until pagination function.
• #217: adds missing indices in format string.
• #220: fix bug when checking attributes on a hybrid property.
• #227: allows client to request that the server use the current date
  and/or time when setting the value of a field.
• #228 (as well as #212, #218, #231): fixes issue due to a module
  removed from Flask version 0.10.