- There's now a notice reminding people to change the base URL if they
had a custom base URL and change the paste type (that was something I
personally had problems with when I was testing, so a reminder was
helpful for me).
- Broke down some of the long lines on APIPage.cpp to be more readable.
- Added copyright headers where they were missing.
- Changed the paste service display names to the names they are more
commonly known by.
- Changed the default hastebin base URL to https://hst.sh due to the
acquisition of https://hastebin.com by Toptal.
