RQGIS 1.0.1

Features

• merging python_funs.py and import_setup.py into python_funs.py
• New function parameter show_output_paths in run_qgis. Setting it to FALSE suppresses the printing of the output file paths.
• random_points is now an sf-object (required also some adjustments in run_qgis and our tests)
• run_qgis doesn't print a space any longer if the Python message is empty
• developing and improving test coverage
• adding GDAL version to qgis_session_info
• load_output now supports all GDAL-supported drivers. Of course, this depends on the system setup (#72).
• deleting deprecated function arguments show_msg and check_params (run_qgis)
• deleting deprecated function argument ltr (set_env)