Fixes for PHP 5.3.

+ Incorrect variable and class contexts.
+ Retrieving element of array returned from function directly, without local variable.
PROV-913 Fixes for PHP 5.3

+ Add PHP 5.3 to Travis CI.
+ Incorrect variable and class contexts.
+ Retrieving element of array returned from function directly, without local variable.
Merge pull request #116 from leftclickben/PROV-913_FixesForPhp53_develop

PROV-913: Fixes for PHP 5.3
Merge pull request #115 from leftclickben/PROV-913_FixesForPhp53

PROV-913: Fixes for PHP 5.3
NOJIRA Update hierarchy browser buttons
NOJIRA Update to the Glenstone installation profile
Merge branch 'develop' of github.com:collectiveaccess/providence into develop
NOJIRA merge with repsect to parent_id
Merge branch 'develop' of github.com:collectiveaccess/providence into develop
WIP Add a dateAccuracyJoiner refinery

* derived from dateJoiner
Completed date accuracy joiner including tests
Merge pull request #117 from kehh/dateAccuracyJoinerForUpstream

PROV-936 Date accuracy joiner refinery
PROV-635 components UI fixes
Merge branch 'develop' of github.com:collectiveaccess/providence into develop
PROV-856 fix transaction handling
Merge branch 'develop' of git://github.com/collectiveaccess/providence into develop
PROV-926 improve accuracy and, to some extent, performance
Merge branch 'develop' of github.com:collectiveaccess/providence into develop
PROV-937 quote database name during install to prevent errors
PROV-938 Removing handsontable submodule

The jquery-handsontable-src submodule is no longer available and this
causes failed builds. Removing it from the project.