Fixed uniqueness check for email and username
Modified creation of Issue to include the owner
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/main/java/internship/issuetracker/controller/IssueController.java
	src/main/java/internship/issuetracker/service/IssueService.java
Revert "Merge remote-tracking branch 'origin/master'"

This reverts commit 93acbb527e7a6677e4a7db529d62a7590211f91c.

Conflicts:
	src/main/java/internship/issuetracker/controller/IssueController.java
	src/main/java/internship/issuetracker/service/IssueService.java
	src/main/webapp/WEB-INF/views/main/layout.jsp
Merge remote-tracking branch 'origin/master'

Conflicts:
	src/main/java/internship/issuetracker/controller/IssueController.java
	src/main/java/internship/issuetracker/service/IssueService.java