Add asterisk to required field in user edit box

Change-Id: I1e153127dc2289cd6f827817b9ee2d3619e8f18b
Closes-Bug: #1268807
Make text in Project Overview - Limit Summary section consistent

It removes 'Available' prefix from 'Available Volumes' and 'Available
Volume Storage' to make them consistent with others; e.g. 'Instances',
'VCPUs', 'Security Groups' etc.

Change-Id: I2d901348afa17b3393e7759871b1609c64f73dc2
Closes-Bug: #1268800
Merge "Add asterisk to required field in user edit box"
Merge "Make text in Project Overview - Limit Summary section consistent"