Enable building devimg with local changes to zapp

[sethcleveland]

diff --git a/makefile b/makefile
index e88340d..6c130c4 100644
--- a/makefile
+++ b/makefile
@@ -106,6 +106,7 @@ devimg: $(SRCROOT)
-v $$ZENHOME:/opt/zenoss
-v $$SRCROOT:/mnt/src
-v $$PWD:/mnt/build \

•           -v $$HOME/.m2:/home/zenoss/.m2  \
          -w /mnt/build            \
          -e SRCROOT=/mnt/src      \
          zendev/devimg /bin/bash -c "exec /tmp/install_core.sh"