Updated 'Create and manage images' section

Changed 'Images & Snapshots' to 'Images' and included new field for
Architecture in the Create Image window.
Removed image for 'Create Image'.
Partial-Bug: #1307860

Change-Id: I978804581fc4fcc63fe0af6a2753087df989a043
Imported Translations from Transifex

Change-Id: Ic759a17d1e645714c303f026f724e68466cfe167
SDK Neutron: Fix capitalization of titles

We use sentence style capitalization for titles. Fix the wrong ones.

Change-Id: I0d9f276b25767034c6e63b101ab1142d837712e9
Merge "Updated 'Create and manage images' section"