Strictyaml

* FEATURE: Add support for NaN and infinity representations (122)

* BUGFIX: Fix for 116 - handle Enum or integers errors
* BUGFIX : Fix accidental python 2 breakage.
* BUGFIX : Accidental misrecognition of boolean values as numbers - cause of 85.
* BUGFIX : Fix for 86 - handle changing multiline strings.
* BUGFIX: handle deprecated collections import in the parser (82)

* bugfix - handle deprecated collections import in the parser

* import sys

* BUGFIX : Fixed python 2 bug introduced when fixing 72.
* BUG: issue 72. Now __setitem__ uses schema.

Before this commit, schemas could be violated when assigning to
Map/Sequence members. Now, modifications to the data must fit the
data's schema.

Furthermore, if the node on which __setitem__ is called has a compound
schema, the selected validator within the compound schema may change
correctly.

* FEATURE : Include tests / stories in package.
* BUG: issue 72. Now __setitem__ uses schema.

Before this commit, schemas could be violated when assigning to
Map/Sequence members. Now, modifications to the data must fit the
data's schema.

* BUGFIX : Fix for 64 integer value on YAML object being interpreted as string.

* BUGFIX : 63 CommaSeparated should recognize a blank string as a valid empty list.
* BUGFIX : 61 fix for exception when parsing MapPattern with a non-string (float) as a key - hat tip dgg5503.
* BUGFIX : Fix deprecation warning on Iterable from collections raised by 60 - hat tip dthonon.
* FEATURE : Raise exception if more than one sequence validators are combined.