setup: improved sh scripts

- switched to !/bin/bash because of issues with echo -e on Mac OS
- improved git-sync-master.sh to also rebase on current feature branch
- improved logs in git-publish.sh
- changed build scripts to execute from /bin

script/setup.sh

@@ -1,4 +1,4 @@
-#!/bin/sh
+#!/bin/bash
 
 ABORT="\033[31mAbort:\033[00m"
 SUCCESS="\033[32mSuccess:\033[00m"