API and command line option change: -reset_failed_jobs and -reset_all_jobs now work with -analyses_pattern

beekeeper lists the Analyses that matched the given pattern or exits immediately if there was no match

API change: specialization_arglist -> specialization_arghash; added support for constrained respecialization

API change: merged Q::print_analysis_status + Q::show_and_return_totals -> Q::print_status_and_return_reasons_to_exit to improve speed

API change: merged Q::get_num_failed_analyses + Q::get_remaining_jobs_show_hive_progress -> Q::show_and_return_totals

API change: Q::get_remaining_jobs_show_hive_progress() now takes an obligatory $list_of_analyses and works on API level (may affect speed)

API change: Q::get_num_failed_analyses() takes an obligatory $list_of_analyses and performs API level filtering (may affect speed)

API change: Scheduler::schedule_workers_resync_if_necessary() and Scheduler::schedule_workers() now take an obligatory $list_of_analyses

API change: changed the order of arguments in suggest_analysis_to_specialize_a_worker() and simplified filtering

API change: perform the suitability sorting/filtering in Perl rather than in SQL and gain the necessary flexibility

API change: suggest_analysis_to_specialize_a_worker() and fetch_all_by_suitability() now take a Worker argument

pulled in bugfix [to 18f2193a] : make sure only_semaphored_jobs_to_run is reset when there are other jobs

* version/2.1:
  Added a link to the schema diagram in PNG
  Added an HTML index for the workshop
  Updated the Doxygen doc for 2.1
  Updated the script documentation for 2.1
  Updated the installation guide for 2.0
  Updated the Doxygen doc for 2.0
  Added the Doxygen documentation
  Added scripts documentation
  Added docs/index.html and use rawgit in README.md
  typo
  Include the CSS for the eHive HTML doc
  Doc update to please Doxygen
  bugfix: in each branch README.md will have to refer to its own version of docs
  adding reformatted install.html and README.md links to HTML documents (relying on htmlpreview functionality)

* version/2.0:
  Added a link to the schema diagram in PNG

Conflicts:
	docs/hive_schema.inc