Add space to keep token filters key tables
Support saving IDs of token filters into spec
Support getting/setting token filters by API
Fix a typo

    grn_obj_set_info_source
    grn_obj_set_info_token_filters
                     ^^^^^^^^^^^^^
Support getting token filters
Support applying token filters
Follow API change
Export grn_token_mode
Add token filter plugin API
table_create: add --token_filters option
Add missing source to source list
nginx: update the latest stable

1.7.5 ->
1.7.6

nginx 1.7.6 has been released!!
Add stop-word token filter
Ignore query that all tokens are skipped

Is it a good approach?
Add missing add_library
doc: add client section
Merge pull request #209 from groonga/support-token-filters

Support token filters
doc news: remove inappropriate entry

grn_expr_alloc_const() is a function for internal use.
token_filter: add missing `target_link_libraries`
Merge pull request #208 from cosmo0920/update-nginx-latest-stable

nginx: update the latest stable

Patch by Hiroshi Hatake. Thanks!!!