Enhancement
Add possibility to define multiple database handles for one datasource.
A Round-Robin algorithm is used to choose a handle.
If one handle is not available it will be removed temporarily from pool
For configuration see: https://github.com/gtxcontentconnector/contentconnector/wiki/Configuration
Bugfix
Search queries containing the characters ‘&‘, ‘|‘ or ‘~‘ returned unexpected results when
using the CRQueryParser and inherited classes because those characters where always
replaced with ‘AND‘, ‘OR‘ and ‘NOT‘. This has been fixed: if those characters are
escaped (using backslash ‘\‘) they won‘t be replaced anymore.