Add note about distutils bug.
more better fix for HOME being set on windows
Merge pull request #970 from CounterPillow/patch-1

Add note about distutils bug.
Added more explicit example for texture pack downloading
Updated the wording in the texture installing docs to be less confusing
missed the quotation block
updated texture version to 1.6.2
more wording adjustments
fixed --check-terrain with --config