Notify CacheListeners on calling refresh and removeAll (TechEmpower#51)

- Fix bug where 2 methods failed to notify appropriate CacheListeners.
- Enhance refresh() to accept vararg for the list of IDs to refresh.

2.24.0 release (TechEmpower#48)

Merge pull request TechEmpower#34 from msmith-techempower/envvar-config

Support both System.properties and envvars

Merge pull request TechEmpower#32 from k-r-g/jdbc-monitor

Support conventional usage of java.sql.Connection

Merge pull request TechEmpower#31 from msmith-techempower/2.24.0

2.23.0 releaase

Merge pull request TechEmpower#20 from msmith-techempower/2.22.0

2.22.0

Fixed some bugs with the archetype (TechEmpower#3)

Updates required in pom.xmls for first release (TechEmpower#2)