Modern Python package format

Moving to PEP 517-compliant package definition.

Now with filehandles

Reader: new support for opening file-like objects, both as argument in instantiation, and with new member function.

Biorad* errors in main module

Now reading/parsing errors imported into namespace of main module:
BioRadInvalidFileError, BioRadParsingError

more docs, tightening up code

0.5

adding nose2 testing to procedure

fixed tiff export bug, documentation, tests

0.4

fixing readme

cleaning up metadata

adding get_metadata_compact()

Metadata functionality

Now full metadata is available from a *.1sc file.

pypi initial release

Version 0.1.1

##Initial Release to PYPI
fetch using pip3 install biorad1sc_reader