Fix weird typo bug on MapHeaders.
Update docs to note that replay times are client times not server times.
Point back at s2protocol as the reference implementation for replays.
Fix map_name in JSON plugin and add some fields

Change map to map_name in JSON output
Add a few relevant fields to JSON output
Complete the plugin test
Restore a bit of PEP-8 in test_all and replay
fix processing of unit_upkeeper for tracker events
Clamp all player stats.
Improve PlayerStatsEvent documentation.
Fix PlayerStatsEvent.food_used and food_made values.
Process ability flags into a more accessible boolean lookup.
Finally start using a changelog.
There is no SEA depot, use US. closes #123.
Document the origin of unit.id=0. closes #112.
Clean up and document the new APMTracker.

closes #106
Fix several ability codes, closes #120
Some custom games have update_type=3, what is going on here?
Improved parsing. Fix support for old replays.

Adds a few now-fixed replays for regressions and improves parsing
to exactly match the structure dictated by the s2protocol library.

Closes #132.
Update the changelog.
CHANGELOG needs to be in RST.
Remove the commit hashes that aren't converted in .rst
Append the changelog to the end of the README on install.