Fix NPE when there are two repositories which only differ in case

Sascha Vogt

2014-06-18 396e9bb50d7eca0d96da2c5fc5177a22f78d30b7

 src/main/java/com/gitblit/wicket/pages/propose_git.md

@@ -2,5 +2,5 @@
    cd ${repo}
    git checkout -b ${reviewBranch} origin/${integrationBranch}
    ...
    git push --set-upstream origin ${reviewBranch}
    git push -u origin ${reviewBranch}