construct dictionary for deprecated types
construct dictionary for valid trace types
check for deprecated and invalid trace types in force_clean
first force_clean tests
bump version
improve warning message
modify test_dict_instatiation_error now that 'scatter' is default
fix force_clean tests
Merge branch 'master' of https://github.com/plotly/python-api into force_clean_dev

Conflicts:
	plotly/version.py