bugy#118 added unit tests for ldap groups loading

Update README.md

Merge remote-tracking branch 'origin/master' into stable

bugy#105 fixed asyncio issue in tornado 5, when sending script output

bugy#92 specified explicit min-height for flex topmost container

bugy#91 added try/catching errors on observer notifications

fixed a build bug, when web libraries were not included on a clean pr…

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