single html package
ported usage view to bootstrap 3
added new start page
integrated callback functions in start page
added dev-option for generating Nexus indices
fixes in sunburst chart
added bubble chart for process contributions
additional functions in olca-js
additional file storage locations for databases
fixed thread access problems in database creation dialog
added new SQL query browser
added external files for sources
show file extensions of sources
store shapefiles in database file storage