Merge pull request #31 from hawesie/master

Made package structure aware of crop_map script
new image_blurrer_node
changed naming of topics for marathin
Merge pull request #33 from marc-hanheide/master

I added an image blurrer node to tackle privacy issues for the marathon
Adding Strands_tweets node
Create README.md
Update README.md

added README
Improved management of tweets
Merge branch 'master' of https://github.com/Jailander/strands_utils
Adding preliminary version of the streamer node
Merge pull request #34 from Jailander/master

Adding Strands_tweets node
Commit of first working structure