Oracle compatibility: Shortened datasource names to fit undef Oracle requirements

This will allow Oracle-based installations to upgrade to the new, shorter table names of v1.3 and go back to the standard code.

* `ajaxrating_hotobject -> ar_hotobject`
* `ajaxrating_votesummary -> ajaxrating_vs`
Adding mt-getvotes.cgi and GetVotes for dynamic polling option
Abstraction of generic AjaxRating::App class and simplicfication of app classes
Merge branch 'app-refactor' into feat-getvotes
Refactored GetVotes acording to app-refctor and AjaxRating::App
Merge branch 'oracle-compat'