Remove explicit temp directory setting from solr.xml

Removes explicit setting of temp directory in contexts/solr.xml, which
caused solr crash while starting on systems with bundled gems directory
not writeable by non-root.
Updating documentation to show how to use the silent option with the reindexing rake task
Added HTTPs configuration support.
Merge pull request #481 from dblock/https-support

Added HTTPs configuration support.
Merge pull request #526 from mdx-dev/feature/taggable-geo

Add ability to tag Geofilt restrictions
Merge pull request #516 from Jaco-Pretorius/master

Updating documentation to show how to use the silent option
Merge pull request #497 from skycocker/master

Remove explicit temp directory setting from solr.xml
Merge pull request #470 from mikeauclair/solr_joins

Solr joins
readme fix
Merge pull request #531 from mikeauclair/solr_joins

Join related readme fix
updates stub session proxy to add raw_results

fixes an issue where raw_results was undefined when testing against stub
session proxy
Merge pull request #536 from mockra/stub-session-proxy-raw-results

updates stub session proxy to add raw_results
Honor JAVA_OPTS when running server.
Add DSL for group.facet=true solr functionality
Make InRadius restriciton use GeoFilt class