added set method to modify variables (add, update, remove)
added save method to save the changes (lazily).
own implementation to load and save properties files
added findVariable method to find the EnvironmentVariables instance that defines a given variable
reimplemented version set feature and using findVariable we now also render a warning if the version is overridden in another properties file (e.g. in properties located in conf folder).
stripped out more logic from Functions
added EnvironmentVariablesType to classify an EnvironmentVariables instance (via getType() method)
also added getByType method to find the EnvironmentVariables of a given type
added collectVariables method to collect all declared variables for EnvironmentCommand that now also uses the new context infrastructure.
Implements #1337:
setmethod to modify variables (add, update, remove)savemethod to save the changes (lazily).findVariablemethod to find theEnvironmentVariablesinstance that defines a given variableversion setfeature and usingfindVariablewe now also render a warning if the version is overridden in another properties file (e.g. in properties located inconffolder).FunctionsEnvironmentVariablesTypeto classify anEnvironmentVariablesinstance (viagetType()method)getByTypemethod to find theEnvironmentVariablesof a given typecollectVariablesmethod to collect all declared variables forEnvironmentCommandthat now also uses the new context infrastructure.