cleanup repository-transport spec
cleanup repository-transport spec

- fix formatting
- add open issue for common test suites for every repository protocol

lsmaira/gradle,gradle/gradle,gradle/gradle,robinverduijn/gradle,gstevey/gradle,blindpirate/gradle,gradle/gradle,gstevey/gradle,gradle/gradle,lsmaira/gradle,robinverduijn/gradle,gradle/gradle,lsmaira/gradle,blindpirate/gradle,gradle/gradle,robinverduijn/gradle,robinverduijn/gradle,robinverduijn/gradle,lsmaira/gradle,lsmaira/gradle,blindpirate/gradle,robinverduijn/gradle,lsmaira/gradle,blindpirate/gradle,robinverduijn/gradle,gstevey/gradle,gradle/gradle,lsmaira/gradle,gstevey/gradle,blindpirate/gradle,gradle/gradle,gradle/gradle,lsmaira/gradle,gradle/gradle,blindpirate/gradle,robinverduijn/gradle,blindpirate/gradle,lsmaira/gradle,gstevey/gradle,gstevey/gradle,gstevey/gradle,robinverduijn/gradle,robinverduijn/gradle,lsmaira/gradle,gstevey/gradle,robinverduijn/gradle,blindpirate/gradle,gstevey/gradle,blindpirate/gradle,blindpirate/gradle