[#1901] Ernesto/Rebecca - Adding endpoint for querying whether device is blacklisted.
[1899/1864] Kavitha/Sanchari : Improved functional test coverage around Enquiries API
[#1813] | Making some assertions more readable.
[#1911]Kavitha - Added sanitize params on ChildrenController
[#1912] Rebecca - Check whether device is blacklisted before returning child data
[#1901] Rebecca - don't run before_filter to check whether device is blacklisted
Merge pull request #600 from rsliter/master

#1901 and #1912