#64. Added UC11 and UC12 defining the required cases
#50. Updated UC5 where User reads usage stats
Merge branch 'master' of https://github.com/yegor256/thindeck

Conflicts:
	src/main/requs/main.req
#50. Removed the code corresponding to other issues. Left only the code connected to #50
Merge pull request #99 from antonxt/master

#99: pull request #50. Updated UC5 where User reads usage stats