Continuing Meteor Rework

- Most events now have lower and upper bounds. ETAs, number of meteors,
wave delays, you name it
- Bar supplies vastly extended and spawn system mostly unfucked
- Changelog included
- Minor map modifications to include new spawnpoints (landmarks)
- Included is the -commented- line announcement in meteor.dm and the
announcements.txt file ready for generation. To activate, simply
generate then uncomment line 31 of meteor.dm
Dreammaker in charge of registering changes
Removing now outdated commented code
Porting human\life fix from Baystation12

- There's really no reason to not have this. That's one loop instead of
four and saves up some processing power. And heavens knows we need
processing power
Revert "Porting human\life fix from Baystation12"

This reverts commit 80fc3ca36a7fca18bc29886dbba7a77e49ffb17a.
Merging reagent check loops

Change directly ported from Baystation12 code. Every bit of improvement
helps

- The four loops used to check for chemicals affecting heart rates have
been consolided into a single loop
More work done on sculpture

- Escape function removed, SCP can no longer just leave if NOTHING is in
sight
- Instead, SCP now uses vents to move around. Time to weld those vents
- SCP now only considers humans as targets (and not all carbons, which
includes such nice things as slimes) and only registers their sight
- SCP should now longer chainsnap targets
- Messages to span
- Logs are now red, for maximal attention
- Other improvements
Merge pull request #1331 from dylanstrategie/Meteor

Continuing Meteor Rework
Merge pull request #1332 from dylanstrategie/Human-Life

Merging reagent check loops
Before my PC goes tits-up again - Horror, with bugs.  Needs more work.
Merge branch 'Bleeding-Edge' of github.com:d3athrow/vgstation13 into Bleeding-Edge
Missing file, commenting out modular power.
Missing DMIs.
Putting changelog + Typo
More ch-ch-changes.
Revert "Putting changelog + Typo"

This reverts commit 0adf792a380f64ccc01b12c445644a2d873ea40c.
Fixing typo
Fixed changeling icons not rendering properly.
Changelog
Fix supermatter blocks.