[FLINK-962] Initial import of documentation from website into source code (closes #34)
Add script to merge pull requests
Show version information including commit date in TaskMgr log
Add garbage collector stats to output of TaskManager memory usage debug thread
Revert unintentional change in 1357ea3a40f747e4e51b5b52612323fe55747da7
Changed default number of task slots per machine to one.
Add logging for task slots.