Fixing addPoint as to prepare for Meta change next. Also removed some HBaseExceptions as to remove imports in the TSDB class from the org.hbase.async package
Merge pull request #77 from hi3g/addPoint

Changes in addPoint().
Add #equals and #hashCode to Annotation to simplify equality checks
Merge pull request #78 from hi3g/annotation_equality

Add #equals and #hashCode to Annotation to simplify equality checks
stashing chnages over weekend
stashing work for peer review
some changes to remove the last direct put request in the TSDB, right now one can set the specific counter. This might not be great in the long run since it is supposed to be only set to 1. Might change this before merging.
removed unused imports
fixed imports