release: version 2.1.0 -> 2.1.1
ZEN-11959. Only remove if BOM marker is present
Fixed monitoring error

Use hostname, as datasource config has no 'id' property and when the
method is called from ds plugin, it results in error:
'Task configLoader configure failed: PythonDataSourceConfig instance has
no attribute 'id' '
Fixed index error in case the script was not set and 'Use Powershell' is disabled

Fixes ZEN-10924.
Added event clearing, after both script and parser are set for datasource.
Refs ZEN-14317: Fix for monitoring error
Merge pull request #244 from ssirushchyshyn/develop

ZEN-10924
Merge branch 'release/2.1.1_ucsx' into develop

Conflicts:
	ZenPacks/zenoss/Microsoft/Windows/datasources/PerfmonDataSource.py
	setup.py
Fix bad merge from release/2.1.1_ucsx.

Resolve one unresolved merge in PerfmonDataSource.py.
Document 2.1.3 changes.
Merge branch 'develop' of https://github.com/zenoss/ZenPacks.zenoss.Microsoft.Windows into develop