When doing GTI operations over HTTPS, a problem arises when pushing the command:
The requested URL returned error: 403 Forbidden while accessing
Unable to push their own application. After some searching and testing, here is the simplest solution:
On the command line, change the address of the remote repository and add your user name to the front of the address:

git remote set-url origin https://[email protected]/user/repo.git

As my original origin address is: https://github.com/shincling/Initial_test_02.git
At this point becomes: https://[email protected]/shincling/Initial_test_02.git

And then if you Push, git, Push origin master, it will pop up and it will ask you for your password

You can actually just add the password to origin and just Push it

from:
http://stackoverflow.com/questions/7438313/pushing-to-git-returning-error-code-403-fatal-http-request-failed