fixed missing spring config in agent part
Merge pull request #3 from cy6erskunk/master

JS refactoring
handled situation, when a clone of start/stop instance presents
minor fix
do not show wrong URL error message, when URL is empty (for instance, when creating a new profile)
defaulted max # of instances to 1
removed unused class
move a couple of selectors to vars
Merge branch 'master' of github.com:paksv/teamcity-vmware-plugin
clarify `validateServerSettings` error displaying logic