Changed the OPEN and ACTIVE status filter behaviour.
Merge pull request #123 from hesibo/master

Recent Winning Design Submissions API
Revert change in checkUserExist method
Merge pull request #125 from Ghost141/master

Revert change in checkUserExist method
Merge pull request #124 from LazyChild/develop

Changed the OPEN and ACTIVE status filter behaviour.
add submissionEnd filter to private challenges.
Merge pull request #126 from LazyChild/develop

add submissionEnd filter to private challenges.
set date format for registration date
Member Search API