Merge pull request #12 from AdamPapros/master

fix fix fix goddammit fix !
clean up
[REFACTOR] TSimpleServer -> TThreadPoolServer DONE; WIP: replication #6; tits and tats; rm not working yet; minor changes to interfaces, please review them
Merge remote-tracking branch 'upstream/master'

Conflicts:
	dfs-server/src/main/java/rso/dfs/server/DFSServer.java
fix
Put stops when there is no such a file.

Naming fixes.