Improved error handling if Header.ftl or Footer.ftl are missing. User gets error when generating with missing Header/Footer. We also create an Empty Header/Footer in the templates folder so that the user can just regenerate without a repeating error.
Merge pull request #437 from mdijkstra/master

Improved error handling if Header.ftl or Footer.ftl are missing.
Update doc/compute/01_compute_introduction.md
Fixed -mcdir bug in Molgenis/Compute distro.
Merge pull request #438 from mdijkstra/master

Fixed -mcdir bug in Molgenis/Compute distro.
removed the useless comments and empty lines between code
removed the empty lines between code
removed a folder of java classes that are not used any more
renamed a class name
removed some unused methods and the empty lines between codes
highlighted the ontology terms within expanded terms
removed some unsed code; add a new function in which the fact whether children ontology terms contain parent ontology terms (that means whether children terms are just more specific form of parent terms) is checked, if children term is only a more specific form of parent term, such terms will not be collected for term expansion because they will only introduce noises in matching
removed many empty lines between codes; add a new request handler that handles the reuqest where the measurement information is asked for
removed many empty lines; add a new request to ask for measurement inforamtion from server and show them in the UI
Merge branch 'testing' of https://github.com/molgenis/molgenis_apps-legacy