Merge pull request #2 from korpling/develop

Merge into amir-zeldes:develop
Merge pull request #3 from korpling/develop

Merge into amir-zeldes:develop
HTML visualizer now prioritizes element hierarchy for annotations covering the same tokens accordings to the order of the config file, not alphabetically (fix for issue #333)
Merge pull request #354 from amir-zeldes/issue333_HTMLvis_element_order

Issue333 html vis element order