Merge pull request #1 from Pfeil/master

Support regular expressions/multiple files
completely rewritten parser. Order of parameters now completely irrelevant. Options for username and primter added, more verbose output to check what will be printed, updated README.md accordingly.
README.md: specified bug with spaces in filepaths or filenames
Merge branch 'betterParser'
Merge pull request #2 from Pfeil/betterParser

New parser, options for username and printer.
Merge remote-tracking branch 'upstream/master'