ZEN-13479:  replace invalid characters when creating JSON.
Use datasource.id as registry key to save last accessed time
Fixed defect ZEN-13190
Fix for ZEN-13549
Fix for ZEN-13588
Fix for ZEN-13662
Fix for ZEN-13662: fixed property id
release: version 2.1.0 -> 2.1.2
post release: 2.1.2 -> 2.1.3dev
Documentation update

Added sections regarding using WinCOmmand notification and
modeling/monitoring MSSQL Server instances.
Document ZEN-13662
Document ZEN-13662: typo
Document ZEN-13662: added info about MSSQL
Edit and update grammer in README
update release note changes for 2.1.2
Revert last change
ZEN-13479 Remove escape characters from JSON.
Use Event id in registry instead of log name.
Fixes ZEN-13472:  Specify hours as the max age units
Merge pull request #227 from zenoss/feature/ZEN-13472

Fixes ZEN-13472:  Specify hours as the max age units
rework the dbinstances grid such that it will be more forward compatible between ext versions
Merge pull request #228 from zenoss/feature/ZEN-13502

rework the dbinstances grid such that it will be more forward compatible...