A block of HTML is copied to make a template; some of the id elements were being
removed, but 2 were left on causing Lighthouse to complain about
duplicate ids.

- resolves VUFIND-1257

- Includes bug fix to extended range displays (when activating multiple ranges, the alignment and formatting of some controls could become incorrect).

- Includes non-Javascript support for advanced searches
- Simplifies EDS implementation by eliminating redundant JS

Upgraded to Zend Framework 2 beta 5; this breaks translation support due to reworking of i18n framework code; this will be fixed in a subsequent revision.

Moved themes from /themes/vufind/ to just /themes/ -- this simplifies file paths and fixes a bug in install.php that generated an invalid Apache configuration.  This increases the risk of conflict with themes from a different module, but using VuFind in combination with other theme-using modules is going to require extra customization anyway; not worth complicating the common use case.