Downloaded and installed homebrew.
Used brew to install ant on my Mac.
Downloaded BreezeMap from github.

in build.xml set <target name="teiToGeoJSON"><arg value="-s:${proj.dir}/xml/servitengasse.xml"/> to point to my xml file

in index.html set value for var mapCentre, and for maxZoom, numZoomLevels and zoom in view object, and for numZoomLevels and maxZoom in layerXYZ object, also tried two different tilesets in the layerXYZ object (OSM default and plain grey-scale from cartodb

to start up simple http server
cd to directory (e.g. cd /Users/sarneil/Documents/Projects/gerslav/servitengasse/BreezeMap-master)
python -m SimpleHTTPServer 8000 .

to kill server session
ctrl-c in terminal window running session

to build geojson from xml data file
cd to utilities folder in the breezemap instance for the project (e.g. cd /Users/sarneil/Documents/Projects/gerslav/servitengasse/BreezeMap-master/utilities)
ant -lib .