Fixing home page link and thumbnail link within catalog index partial
Initial version of Parser with mesh data checked in
refactoring mesh tables
Adding mesh related models
refactoring parser and making it transaction safe
Initial version adding rake task to import mesh data
adding sample mesh file
Started work on breaking down tree structure
More tree fun.

We store an array of the parent terms mapped to strings in a
database column, with special accessors to handle the mapping between
Arrays and Strings.
Making subject_mesh_term_id as primary key and fixing error in evaluating mesh tree path
Adding rake task to import subject heading and evaluate the tree structure
fixing id on subject and location so that autocomplete will be triggered
Initial Version autocomplete subject based on new mesh term table
adding subject hierarchy facet to solr
removing some facet and adding subject hierarchy facet
alter the name of hierarchy field
adding some styles around facets to display count inline
adding blacklight-hierarchy facet
postgres related table changes
adding autocomplete css