Update Punic to 1.1.0

Punic now uses the new version of the Unicode CLDR data (v26 - released on 2014-09-18)
Image block onState change functionality added back
Uncommented caching properties
amended echo to print for consistency in view.php
Make script addition dependent on onState image being set
newline end of file
update id/class for social links block

changes from ID to class.
update id/class in social_links view.php

changes ID to something unique. moves generic name to class.
Remove UNIQUE from `Config.configItem`
Add stub migration for 5.7.1 release
Fixed saving config from package not working
remove ComposerContentLayout reference

That I can tell this is not need and gives errors on uninstall when working with packages that install defaultTemplate blocks.
Fallback
Fix #1210 and implement #1212
Add a test that fails in the case of #1210
Merge pull request #1211 from KorvinSzanto/develop

Quick pull to remove key from the `Config.configItem` column
migration update
Allow  as string in Assetlist
Merge pull request #1203 from mlocati/use-punic-1.1.0

Update Punic to 1.1.0
Merge pull request #1205 from brucewyne/develop

Update ID/Class for Social Links Block