refs #432: do not add banned user's event to Lucene index
ensure that user does not have to call #hasNext() before #next()
use flag instead of existance of Optional
shorten test case
shorten test case
fixed a bug
refactor complex condition, thanks for @mayah
Merge pull request #493 from eller86/filter-banned-account

stop adding banned user's event to Lucene index
upgrade Play! to 2.1.5
upgrade Java testing libraries
replace deprecated API with recommended one
fix cookbook for play to use new URL
Merge pull request #494 from eller86/pr-play-2.1.5

Upgrade Play! framework to 2.1.5, testing libraries to newest version