- changes for secondary libraries; there is no need to use syntax
    from ce_libs import <my_library>
  in test cases to get the library's methods
- added a folder category in reporting to be able to group the reports
- the project name is available as an internal variable to be saved in DB
- added a mechanism to cache the NIS users when server starts; the list
  of users is updated every hour by the server
- added description files for all plugins
- changed users_and_groups.ini file to have groups_development and
  groups_production
- fixed issue #89 - all configuration panels display panel name
- fixed issue #85 - fixed editing test case property
- updated user guide
- update plugins&libraries document