IDEX-1667: rename GenerateDescriptor -> GeneratorDescription
move helpers to commons project
IDEX-1637: Add viewer of build directory content in json format
Removed usage of MemoryUtils
use Size helper for parsing disk metrics
switch to info level logs about selected runner or builder
Merge pull request #109 from codenvy/IDEX-1667

IDEX-1667: rename GenerateDescriptor -> GeneratorDescription
DASHB-586: Move AnalyticsEventLogger to client package.
CLDIDE-2171 Added roles for workspaces
IDEX-1667: allow to register several project generators for one project type
IDEX-1597: Add methods for downloading build artifacts as single tar or zip archive
Use concurrent collection
Merge pull request #111 from codenvy/IDEX-1667

IDEX-1667: allow to register several project generators for one project type
Merge remote-tracking branch 'origin/master' into CLDIDE-2164