Partially add building of Android application to CMake system. This is not straightforward and not finished yet.
Remove many of the ignored files.These files are now in the build tree and do not need to be ignored.
Add some temporary test/experiment files.
Ignore generated files, but add default.properties, which is also generated. default.properties requires an ant setup to generate. It is easier to simply add it.
Add more files to ignore list.
Add ignore file.