Set version to 1.2.4

Bump version to 1.2.3

Bump version to 1.2.2

Update changelog, bump version to 1.2.1

Add README link to UPGRADING

Merge pull request bigcommerce#18 from bigcommerce/call-opts

Add the ability for call options to the client, which enables deadline setting

1.0!

Update license to MIT, bump version to 0.14.1

Merge pull request bigcommerce#16 from mattolson/release

Bump version to 0.14.0

README update