Fixed NPE
IDEX-1020 adding a preparation started event to notify client when recipe file is available
correcting if condition
Merge pull request #99 from stour/IDEX-1020

IDEX-1020 adding a preparation started event to notify client when recipe file is available
Fix tests
Merge pull request #100 from codenvy/fix-tests

Fix tests
Merge branch 'master' into CLDIDE-2106