Replaces the build-prop file with a template

The build.properties file that is used by Ant when building/deploying
Infoglue is not removed and put in gitignore. Instead there is a
build.template.properties file that developers can copy and make a
build.properties that fits their needs.
Merge pull request #87 from stenbacka/build-properties-template

Replaces the build-prop file with a template