Fixing MB-699
Fix for MB-744 and some changes suggested in andes code review
Merge pull request #24 from sperera/master

Fix for MB-744 and some changes suggested in andes code review
:wq:Merge remote-tracking branch 'upstream/master'
Merge pull request #25 from ramith/master

fixing MB-699
Addidtional checks and logging added for configuration errors.
 - andes-virtualhosts file typo fixed.
cassandraServerService startup disabled.
content removal task interval in andes-config file changed from reading a milli seconds value to
a seconds value.