Revert "Some changes for git generated stuff."

This reverts commit d6d6bfd331fa10cd9c5cdfda643b4e68d4f655f4.
Revert "Update .gitignore"

This reverts commit 8cfe29ac1f1614200daeae1fa7186464ade22e0c.
Revert "Revert "Update .gitignore""

This reverts commit 0d6cec87e0c1c1fef9ccb0e618ed5962abc01a1a.
Revert "Revert "Some changes for git generated stuff.""

This reverts commit 71c6242a7224a20e37f9b64c28de58028f09b889.