Fix in HGRepository>>#branches when using command server. When using command server and there is no output, nothing is ever sent to the $o channel and thus output parser is not even run.

syntax: glob
*.chg
*~
*.orig
*.o
*.so
*.sc
*Init.c
*.H
*.STH
*/makefile
*/docs/output/*
*/docs/*.xml.profiled

*/objbc
*/objvc
*.res
*-Test.xml