add location, provider and datatype filters
filter obs groups
added locations, fatatypes and providers in json for filtering.
Merge branch 'master' of https://github.com/openmrs/openmrs-module-chartsearch
fix last commit
added provider to json observation
update filter options according to results
Merge pull request #14 from k-joseph/master

[CSM-63] java.lang.NoSuchMethodError: org.slf4j.helpers
fix some bugs in the json
Merge branch 'master' of https://github.com/openmrs/openmrs-module-chartsearch
small fix in filters
filters: add more time options. better style
fixed dates sort bug
color graphs
remove sparkline background
fixed graphs
implementing solr faceting for categories
improved facets implementation and added ajsp file for manageCategories
filtering working for each category that was clear for me from concept class seperately and has no counts so-far
removed FacetForACategoryFilter and rether implemented faceting by another way, added all available concept classes in the 1.9.0 demo database as category filters, all available filters are now working well, refactored code
Merge pull request #15 from k-joseph/CSM-58

[CSM-58] Define categories
fixed issue with select all and deselect all categories