terminate rest service when process get killed and do not wait for keyboard input
create function for create_mappings option
create seperate function for -list_missing option
move label translation in seperate function
remove try/catch-block on the entire main function
add instructions for mediawiki extension
Importing Airpedia listings

 * import template mappings from airpedia files
 * import property mappings from airpedia files
 * reintroduce language parameter for options: -list_missing,
 * -translate_file and -import_template
increase version to 1.3
add description and edit summary for airpedia options