Added memory overflow detection
Fixed segfault on shutdown in HTTP module
Improved worker API
Show pid in heap dump

Also fixed invalid write in PancakeReallocate()
Adapt logging API for new worker API
Added missing include
Added checks for PancakeDoShutdown in PancakeLinuxPollWait()
Implemented singlethreaded mode
Remove pointer to buffers from sockets
Added PancakeNetworkRead()
Signed retval required here
Added API for socket removal
Implemented socket removal API in LinuxPoll
Added PancakeNetworkClose()
Fixed length of read buffers
Initialize read buffer value to NULL
Initialize read buffer length to 0
Call module shutdown hooks
Implemented shutdown handler for LinuxPoll