Bug #691: Creation of multiple exhibits for one time
Issue686 Collection validation for Timelines, Exhibits & ContentItems

Issue868 Parent collection Validation
Merge branch 'master' of https://github.com/alterm4nn/ChronoZoom into Issue686ExhibitCollectionValidation
Bugfix for #643 - Initial timeline created with wrong data
Merge pull request #715 from alterm4nn/initialdatefix

Bugfix for #643 - Initial timeline created with wrong data
Merge pull request #712 from charuch/Issue686ExhibitCollectionValidation

Issue686 Collection validation for Timelines, Exhibits & ContentItems
Merge pull request #711 from javierluraschi/Fix691

Bug #691: Creation of multiple exhibits for one time
Convert the relative content item 'order' into absolute position within exhibit.
Bugfix for #721- checkbox behavior in profile form
Merge pull request #725 from alterm4nn/termsagreement

Bugfix for #721- checkbox behavior in profile form
Bugfix for #722 - changing error message
Merge branch 'master' of https://github.com/alterm4nn/ChronoZoom
Merge pull request #720 from Wahib/explicite-ci-order

Convert the relative content item 'order' into absolute position within exhibit.
#605 Authoring: User get unclear error message when tries to create artifact with incorrect image url

Server was changed to return a BadRequest along with an invalid url error if a content item has a bad url. Media Source is also checked if present.  Client will need to be changed to display these error.
Merge pull request #735 from xanthics/master

#605 Authoring: User get unclear error message when tries to create artifact with incorrect image url