initial commit
implemented basic functionality. tweets are read and images are downloaded.
Added commandline options

- The script can now be used from the commandline by supplying a valid
twitter user name to download from
- The number of tweets that will be read has been set to 100
- Disabled dumping the tweet json to files
- Added an example configuration file
- Added a readme
Merge branch 'master' of https://github.com/ko89/blubbstrahl