Translate README to German up to b40d8ca22427215303b4
Translate README to German up to b40d8ca22427215303b4

Currently not translated:

* 1996436204e5ad0353b3 - attachment helper
* 267579c8eec16270291a - cache_control
* b3942697a6396c22e785 - expires, last_modified and etag helper
* 63a1bb3db5cab7d4458d - thin

If doing a partial translation, please translate in the above order.

RosenDimov/sinatra,kumji/sinatra,Callygraphy/morrissey,DoraALin/sinatra,ryanshaw/sinatra,gferguson-gd/sinatra,jkowens/sinatra,frechei/sinatra,howtolearntocode/sinatra,kyontan/sinatra,trexnix/sinatra,d-bot/sinatra,eileencodes/sinatra,ABaldwinHunter/sinatra-classic,mwpastore/sinatra,lastcat/sinatra,JonMidhir/sinatra,cyberid41/sinatra,marocchino/sinatra,nju520/sinatra,midorineko/sinatra,Rayheng/sinatra,Wirachmat/sinatra,nicoayala/sinatra,jkowens/sinatra,bmizerany/sinatra,ksw2599/sinatra,defsprite/sinatra,kyontan/sinatra,frechei/sinatra,RosenDimov/sinatra,Wirachmat/sinatra,DoraALin/sinatra,ktw1222/sinatra,kumji/sinatra,wzheng1/sinatra,jenalgit/sinatra,howtolearntocode/sinatra,burningTyger/sinatra,ABaldwinHunter/sinatra-classic,ksw2599/sinatra,davydovanton/sinatra,eileencodes/sinatra,autopp/sinatra,midorineko/sinatra,blambeau/sinatra,JonMidhir/sinatra,twanies/sinatra,mwpastore/sinatra,ganmacs/sinatra,davydovanton/sinatra,JonRowe/sinatra,ryanshaw/sinatra,nicoayala/sinatra,d-bot/sinatra,sinatra/sinatra,QLGu/sinatra,miyazawatomoka/sinatra,burningTyger/sinatra,emiliocorpus/sinatra,gferguson-gd/sinatra,Rayheng/sinatra,emiliocorpus/sinatra,miyazawatomoka/sinatra,defsprite/sinatra,laplaceliu/sinatra,QLGu/sinatra,ganmacs/sinatra,dariubs/sinatra,ktw1222/sinatra,JonMidhir/sinatra,mwpastore/sinatra,porras/sinatra,kgrz/sinatra,wzheng1/sinatra,laplaceliu/sinatra,nottombrown/old-sinatra,sethuster/sinatra,JonRowe/sinatra,burningTyger/sinatra,siberianbear/sinatra,twanies/sinatra,nju520/sinatra,jkowens/sinatra,siberianbear/sinatra,guidohcosta/sinatra,guidohcosta/sinatra,dariubs/sinatra,sinatra/sinatra,porras/sinatra,autopp/sinatra,nottombrown/old-sinatra,lastcat/sinatra,trexnix/sinatra,jenalgit/sinatra,sethuster/sinatra,cyberid41/sinatra