Fix equal/3,4 functions, document select/2,3

• The equal/3,4 functions were missing maps support due to a missing function clause.
• Add select/2,3 function documentation to README

rebar 2.x fix, add select/2,3, improved errors

• fix rebar 2.x compatibility (#11)
• adds select(#13)
• improved errors (#14)

Add support for map format

• Introduce support for new map format
• Deprecate Erlang 17 and lower
• Deprecate jsn:sort/1, jsn:sort_keys/1, and jsn:sort_equal/2

Deprecate jsn:encode/decode, fix OTP dependency

• Add hex metadata to .app.src
• Deprecate encode/decode
• Include jsonx as OTP application dependency for rebar3 release compatibility

Erlang 20 Compatibility

Adds Erlang 20 support:

• Adds support for building with Erlang 20, with compiler warnings addressed (primarily in test module)
• Relaxes require_otp_vsn so that it will not explicitly exclude future Erlang versions

Erlang 19 Compatibility

Adds Erlang 19 support:

• Spec format fixes, primarily, as well as a few spec clarifications.

Initial Release

Initial release of the jsn library