changing ntask core to use ServerStartupObserver as ServerStartupHandler is depricated : CARBON-14927
changing ntask core to use ServerStartupObserver as ServerStartupHandler is depricated : CARBON-14927
Merge pull request #33 from chanikag/master

changing ntask core to use ServerStartupObserver as ServerStartupHandler is depricated : CARBON-14927
Merge pull request #16 from wso2-dev/master

Merging latest changes