added note for people using the git repo to run clean/update if build fails
added note for people using the git repo to run clean/update if build fails

lloydmeta/scalatra,offner/scalatra,Alefas/Scalatra,dozed/scalatra,lzpfmh/scalatra,lightvector/scalatra,seratch/scalatra,Alefas/Scalatra,lzpfmh/scalatra,lloydmeta/scalatra,lzpfmh/scalatra,offner/scalatra,0xfaded/scalatra,0xfaded/scalatra,lightvector/scalatra,Alefas/Scalatra,offner/scalatra,seratch/scalatra,seratch/scalatra,dozed/scalatra,lightvector/scalatra,dozed/scalatra