1.11: Fixed and enhanced

- encryptName now checks for illegal chars
- encrypt command now honors -f switch
- decryptFile now handles a long name correctly
- mkdir can operate on real file system with switch -R
- mv command does not terminate shell anymore in case of errors
- (de-/en-)cryptFile behavior is unified and enhanced in multi-sources operations
- new -F switch instructs encrypt/decrypt to preserve full path specified on the command line (default: only base name is used)