- added system wide config support
- added class for working with .properties files
added ant.properties file updates with values from config file in build_android module
added ability to specify default config values in module implementation
added config key 'doclean' to build module, to be able disable clean operation before building. it's set to 'true' by default.
updated build module usage docs
Merge branch 'master' into develop
Merge branch 'master' into develop
added template file module
template_file module improvements
fixed docs formatting