Fix #3095
Removed double quotation for Content-Type

There is no need to use double quotation when sending the MIME type through the Content-Type header. Chrome will accept either way but Firefox will fail under certain circumstances.
Removed empty line
Removed empty line
Merge pull request #3146 from outime/patch-1

Removed double quotation for Content-Type
[ci skip] Trim EOF empty line followin PR #3146
Fix #3094 (2.2-stable branch)
set composer.json
Alteração nome da library
Merge branch '2.2-stable'