Add option to omit empty fields.

... Still have to make it omit them...
Merge branch '7.x' of github.com:discoverygarden/islandora_solr_metadata into 7.x-UMKC-7
Prevent the "add" fieldset from displaying when there are no models to add.
Implement the omission, based on our checkbox value.
Coding standards.
Unset reference left over from foreach loop...

... 'Cause PHP is silly.
Preprocess functions rename and documentation.

Changed the preprocess implementations to be prefixed with "template"
instead of the module name. See the second entry here: https://api.drupal.org/api/drupal/includes!theme.inc/function/theme/7#sub_preprocess_templates
Additionally, updated the comments for the preprocess functions as per the
standards: https://drupal.org/node/1354#themepreprocess
Biggish refactor to make querying consistent.

Also, little fix to the template for when multiple descriptions
are being combined.
Merge pull request #14 from jordandukart/7.x

Make the length of the textfield longer.
Merge pull request #15 from jordandukart/7.x

@qadan says, 'Bigger is always better'.
@qadan also says "i take no responsibility for merging this before Travis passed. i was pressured by @jordandukart."
Merge pull request #13 from adam-vessey/7.x-UMKC-7

UMKC-7
Make description combination able to be disabled.

...  Inserting the date into the thing is now possible, huzzah!
Merge pull request #16 from adam-vessey/7.x-UMKC-7

Make description combination able to be disabled.
Allow for field formatters and making values unique.
Add the JS explicitly, so our fieldsets are collapsible.
Merge pull request #17 from adam-vessey/7.x-UMKC-7

Allow for field formatters and making values unique.
Allow spaces in field names.

...  Somewhat less efficient to have to fetch all the fields in the
doc, but to be able to use fields containing spaces, this seems to be
necessary... I suppose we could do this conditionally--only if one of
the fields we're looking for contains a space... meh.
Merge pull request #18 from adam-vessey/7.x-UMKC-7

Allow spaces in field names.
Make a default so we don't throw warnings.