few basic functions decompiled and small bug fix
low-hanging fruit
useless functions decompiled
Merge branch 'master' of https://github.com/IntelOrca/OpenRCT2

Conflicts:
	src/addresses.h
Merge pull request #395 from zsilencer/master

A pull request
Initial crack at decompiling 0x006B4800
Merge remote-tracking branch 'upstream/master'
First pass at 6CB70A
Move to viewport.c
Merge pull request #397 from jcdavis/master

Decompile 6CB70A
Construction window is shown, but with very weird results still
Fixes the last bug
Merge remote-tracking branch 'upstream/master'
Merge pull request #398 from Balletie/master

Decompile 0x006B4800
Merge remote-tracking branch 'upstream/master' into scenery-window