Command-line interface updates

The full changelog for the Write.as CLI.

1.2 - September 29, 2018

• Add --md option for getting post URLs with Markdown enabled
• Distribute app in a Debian repo

1.1 - September 6, 2018

• Add --user-agent option for changing the User-Agent header in API requests
• Fix bad dependency URL causing go get to fail (#17)

1.0 - November 18, 2017

• All logging and errors go to stderr, not stdout (#11)
• Verbose logging requires -v or --verbose flag
• Executable now lives in cmd/ directory
• All errors exit with status 1
• Fix cli library deprecation (#8)

0.4 - December 10, 2015

• Add --font [value] option for creating and updating posts
• Use SSL for all requests (a350f2a)
• Fix --code flag not working on writeas --code command (c372ed6)

0.3 - September 8, 2015

• Enable composing new posts in default text editor with writeas new
• Automatically copy URL to clipboard when publishing a new post
• Fix error on writeas list when there are no saved posts
• Add status messages when updating, deleting, or fetching posts
• Add more helpful help to writeas add command
• Add more error messages when something goes wrong
• Fix User-Agent header missing on most requests to backend

0.2 - May 11, 2015

• Add ability to update posts with writeas update
• Add ability to add posts locally with writeas add
• Change post font to monospace

0.1.1 - April 12, 2015

• Fix post fetching

0.1 - April 11, 2015

• Initial release