Update version number

Author: BenjaminRodenberg

setup.py

@@ -20,7 +20,7 @@
 # this version should be in sync with the latest supported preCICE version
 precice_version = version.Version("2.0.0")  # todo: should be replaced with precice.get_version(), if possible or we should add an assertion that makes sure that the version of preCICE is actually supported
 # this version number may be increased, if changes for the bindings are required
-bindings_version = version.Version("1")
+bindings_version = version.Version("2rc1")
 APPVERSION = version.Version(str(precice_version) + "." + str(bindings_version))
 
 PYTHON_BINDINGS_PATH = os.path.dirname(os.path.abspath(__file__))