#190 Implemented ServerTest
#207 Added tests
#158 Removed ScheduledExecutorService
Merge pull request #460 from krzyk/158

#460: pull request #158 Removed ScheduledExecutorService
Revert "#461 #158 Removed ScheduledExecutorService"

This reverts commit 72119e3472dec815c5f10437b19e90704fb51587.
Merge pull request #459 from krzyk/207

#459: pull request #207 Added tests
Merge pull request #458 from nyavro/issue190

#458: pull request #190 Implemented ServerTest