Fix possible crash in validator

Pokemon that received evolutions in future gens.
Support 8x and x/8 effectiveness
Merge pull request #524 from Slayer95/patch-1

Support 8x and x/8 effectiveness
Fix Flower Veil
Fix Flower Veil again
Allow CAP to have HMs
Cawmodore has Big Pecks
Corrected PP accuracy and names for some moves
Merge pull request #527 from VioletPumpkin/patch-1

Corrected PP accuracy and names for some moves
Move changes
Mega Stones can be taken from other Pokemon
Gen 5 Chatter

This was not done in 6b9c179524e2d295e690dd59a7273588b1eb886b
Redir had two help messages
Change Beginner's Guide link in /intro
UUs

Based on Oct-Nov-Dec statistics. These tiers will be updated monthly. The consensus appears to be that UU Beta should be implemented now as an "unofficial" tier with an active ladder. LC UU and Doubles UU have not been discussed to my knowledge.
Replace VGC 2013 with GBU Doubles
Use "Standard GBU" rules for GBU Singles/Doubles
Use "UU (beta)" for teambuilder formats
Belch can't be called by Assist
Tangela and Yanma are now banned in LC