Initial commit
Merge branch 'master' of https://projects.hpi3d.de/git/metro-citygml

Conflicts:
	.gitignore
Merge pull request #1 from jklimke/develop

Develop
 * added a warning when no coordinate transformation will happen since gdal is not activated
Update README.md
Update README.md
Merge branch 'master' of https://github.com/jklimke/libcitygml