Log Message:
Update to 2.1.0

Upstream changes:
2.1.0
Changelog:

* New feature: Filter::matches() can do simple filtering on entry sets \ 
(supported: equals, contain, begin, end, any; NOT, AND, OR. Filtering is simple \ 
based on regexp, no schema checks and matchRules yet!)
* Fixed minor bugs in Filter, LDAP and Entry class
* Util::split_attribute_string(): Added support for extended match operators \ 
from filters
* Util::split_attribute_string(): Added support for delimeter retrieval