Fixes #103 Rewrite loginconvert plugin
Fixes #103

vb5 and ipb3 don't use different hashing methods, however I changed ipb3 to use the passwordconvertsalt column instead of the salt one.
Also added wcf 1 and 2 (used by wbb lite, 3 and 4) and xenforo 1.1 and 1.2
Update WCF1 method
Fixes #103

Added support for Vanilla and modified the phpBB3 one to fit the other phpass users
Merge pull request #104 from JN-Jones/fix-103

Fixes #103 Rewrite loginconvert plugin