Merge pull request #120 from daitken/7.x

7.x grammar and clarity fixes
always return emtpy values when using the range slider + cleanup
small range formatting fix
added ability to format search result dates
dont include highlighting parameters if no fields are set to be highlighted
fixed the way default sort field is implemented
made range facet settings dependent on the field being a -date- Solr field. This needs to be updated when we want to use integers for ranges
split out Solr URL from Solr configuration form
Merge pull request #121 from DannyJoris/7.x

7.x various updates
Alter logic for parsing solrconfig.xml.

Not sure quite what it was, but it was failing to properly determine
if dismax was available..
Be safer when trying to load XML.

... The given file might not have loaded successfully.
Fix the logic in checking the HTTP code, and fix a strict warning.
Basic i18n_string integration.

Allows for translation of the field labels.
Merge pull request #124 from adam-vessey/7.x-i18n_string-integration

Basic i18n_string integration.
Added Travis CI
Broke something on purpose, fix to follow
Fixed, trying to see Travis CI
Avoid assignments in conditions.
Merge pull request #123 from adam-vessey/7.x-solrconfig-loading

Load and parse the solrconfig.xml, leveraging XPath to do most of the lifting...
Allow drush to work when in the islandora_solr module directory.

When looking back up the filesystem, Drupal bootstrapping hits a false
positive (http://drupal.org/node/1481270#comment-6585758 gave me the
clue)... So yeah, don't create an "includes/common.inc".