httpstream.cpp cleanup, added back functionality lost during the merge
renamed ringbuffer.h to ringbuffer_queue.h as it reflects better the purpose of the code
added a fisrt cut for ringbuffer implementation
Few minor fixes to fix a build failure
Fixed few typos
 plugin KeymapManager
Added few fixes and a ringbuffer in httpstream.
Missing semicolon for a class definition
Fixed few more typos, that would not compile
Another compilation fix
Fixed compilation error
Need to cast from void* to char*, RingBuffer interfaces might need a review
fix  typo