remove outdated license file
add first version of wpsStatus functions
Merge branch 'master' into wps4r-status-communication
Merge remote-tracking branch 'bpr/master'
some code cleanup of code comments and method refactoring
add mime type for application/json in R
refactoring of GenericRProcess: split up to several functional files,
start reducing calls to R_Config.getInstance()
rename R configuration variables (more consistently), refactor workspace
directory setting, integrate filtering for incoming commands

further refactoring of GenericRProcess > fixes #67
add integration test for injection, fix wps-off test
update R demo scripts for interpolation
more fine grained exception handling
extend injection handling for WPS4R
update echo test file and add new integration test for variable renaming
during script execution
update logging, no string concatenation anymore
add support for multiple script directories
add error handling for script files with missing annotations
fix integration tests
fix r script metadata URLs for scripts within the webapp folder
handle generic exceptions in GET requests
add causing exceptions in description generation method