added make prereqs to travis.yml
added make prereqs to travis.yml

couchbaselabs/cbgt,couchbaselabs/cbft,nimishzynga/cbgt,couchbaselabs/cbft,steveyen/cbft,steveyen/cbft,nimishzynga/cbgt,nimishzynga/cbgt,couchbaselabs/cbft,couchbaselabs/cbgt,nimishzynga/cbgt,couchbaselabs/cbgt,couchbaselabs/cbft,steveyen/cbft,steveyen/cbft,steveyen/cbft,couchbaselabs/cbgt