delete old VMs script

Based on #893
- renamed/reworked script
- deduplicated functions
Merge pull request #1108 from seandst/pr893

delete old VMs script
Fix my erorr during deverpickization
minor test fixes
Reporting fell over whilst tests were in progress
Merge pull request #1301 from psav/fix_reporter_slave

Reporting fell over whilst tests were in progress
Merge pull request #1299 from dajohnso/more_tests_fixes

minor test fixes
Merge pull request #1297 from mfalesni/fix-ns-tests

Fix my error during deverpickization in test_namespace
Fix quadicons in datastore analysis
Update docs
Fix list accordion xpath locs
Merge pull request #1302 from jkrocil/fix-datastore-analysis

Fix quadicons in datastore analysis
SOAP should now not fail due to setup_infrastructure_providers