Fixed nova flavor default list

List of default nova flavors in OpenStack Admin User guide was incorrect.

I updated it with current values.

Also reformatted list as table.

Change-Id: I36ffef04fa4944b1ad42b2ff6b71d7eeb2b48a1a
Closes-Bug: #1325671
Fix wrong title of security group rules management subsection

'Delete a security group' should be 'Delete a security group rule'
Closes-Bug: #1327541

Change-Id: Ieefcbafc47c338c92ff117b4d6be8196d2c18028
Imported Translations from Transifex

Change-Id: I8ce8a1dab790b44118790b7199bf7d93bac52ade
Merge "Fix wrong title of security group rules management subsection"
Merge "Fixed nova flavor default list"