Hacking Session, Day 4

Stuff worked on during the hacking session on day 4:

• g5pw@: Work on a better HTML port index
  ​https://github.com/g5pw/macports-port-tree, eventually to be deployed at ​https://tree.macports.org/
• cal@: Add per-chapter and per-section tables of contents to the guide
  ​https://github.com/macports/macports-guide/pull/14
• cal@: Fix a nasty dependency handling bug in the glib2 port
  [45c59fe0a66e382927fbf6fe629d37898eb42b6b/macports-ports]
• cal@: Improve unit tests
  [4c11f3bea113e305776751e98d5236e34175a972/macports-base]
  [ea77eb50b06f009629afb95321f0d5cd932c070b/macports-base]
  [0745d2d4efcbe082e13828f31c2c594c2be0a0a4/macports-base]
  [521e0143893f89c35f084205f9230fbd24e30165/macports-base]
  
• cal@: Drop modification date from manpages
  [cc53341c3246b4ca993e3edd95829e68c51fcb71/macports-base]
• raimue@: Remove documentation from github port group
  [9ebf8f61b0a26cb0e1559df1710a50b793462f68/macports-ports]
• raimue@: Work on GitHubStatus filtering for the buildbot
  [830b9ff5b4f0af5d7d2598e01f48ff69074e7742/macports-infrastructure]