feature #2589: Refactor image create dialog
feature #2589: Refactor template create dialog
feature #2589: Close the image/template creation dialog only if the call succeeds
Feature #2589: libfs.sh "fs_size" handles the new AppMarket size reporting

It now sends a custom header: "OpenNebula-AppMarket-Size" and OpenNebula
obtains the size from that.
feature #2589: Add support for multiple files and templates to the Import dialog of the Marketplace
feature #2589: Show Image and Template ID when a new resource is created
Merge branch 'feature-2589' of git.opennebula.org:one into feature-2589
Feature #2589: Remove '\r' chars from the size
bug #2601: Use ssh_public_key when updating a template
Merge branch 'feature-2589'