Updates .gitignore for environment files

Adding ignore for Eclipse IDE environment files
These files .project and .pydevproject should be
ignored while pushing to repositories.

Change-Id: I44dbdaae71c3ed37c11122f1795d36c401dd431a
Closes-Bug: #1256043
Fix inappropriate comment for volume update api

Change-Id: Id7a436cc864772bd2662fce0ef80d647c9e3dcf0
Closes-Bug: #1264415
Fix RateLimit.__repr__ - self.method is undefined

Using self.verb instead of self.method, unit tests added to cover this fix.

Closes-bug: #1258489

Change-Id: I4a84179ff96c50b230afcaea7a19fb54613577fb
Merge "Updates .gitignore for environment files"