adding query filter support
Merge pull request #38 from ryanfitz/query-filter

adding query filter support
version bump
also fix empty sets when serializing
fix serializing empty sets

Merge branch 'chadkouse-emptysets'
support json type
remove uneeded case
make custom type instead of 'any'
update README
trap errors when serializing/deserializing JSON
unset objects before merging
add test and remove debug code
rename JSON => Object type.  Add ObjectSet
option to ease transition for some users
My data has top level arrays stored as strings (JSON encoded).  This
option allows the user to tell vogels to convert these strings to sets
on the fly.
go back to  for object validation type to support top level arrays
Merge branch 'json' of github.com:chadkouse/vogels into json

* 'json' of github.com:chadkouse/vogels:
  go back to  for object validation type to support top level arrays
  option to ease transition for some users My data has top level arrays stored as strings (JSON encoded).  This option allows the user to tell vogels to convert these strings to sets on the fly.
  rename JSON => Object type.  Add ObjectSet
  add test and remove debug code
  unset objects before merging
  trap errors when serializing/deserializing JSON
  update README
  make custom type instead of 'any'
  remove uneeded case
  support json type