[NGRINDER-678]Allow user registration
Fixed typo and some improper codes
[NoIssue]Fixed some comment mistakes
[NGRINDER-684] Fix typo errors
[NGRINDER-684] Fix typo errors
[NGRINDER-684] Fix typo errors
[NGRINDER-684] Fix typo errors
[NGRINDER-684] Fix typo errors
[NGRINDER-687] Make OnTestSamplingRunnable initiated whenever the test is executed.
[NGRINDER-684] Fix typo errors
NGRINDER-688 - Allow multiple DNS entries.
NGRINDER-684 - Fix typo errors
[NGRINDER-689] Refactor home content logic.
[NGRINDER-689] Refactor home content logic.
Merge remote-tracking branch 'origin/master'

Conflicts:
	ngrinder-controller/src/main/java/org/ngrinder/infra/schedule/AsyncRunService.java
[NGRINDER-684] Fix typo errors
[NGRINDER-684] Fix typo errors
[NGRINDER-592] Fix JUnit Test Failure - Make unit test not noisy
[NGRINDER-486]Support agent auto-update

Synch with master branch