Add additional block, remove case sensitivity
Add additional block, remove case sensitivity

I added an additional icecast block and removed case sensitivity from header fields (but not values) as wpull uses .title() against them.
ArchiveTeam/ArchiveBot,falconkirtaran/ArchiveBot,JesseWeinstein/ArchiveBot,emijrp/ArchiveBot,ArchiveTeam/ArchiveBot,Frogging101/ArchiveBot,emijrp/ArchiveBot,falconkirtaran/ArchiveBot,emijrp/ArchiveBot,Asparagirl/ArchiveBot,ArchiveTeam/ArchiveBot,ArchiveTeam/ArchiveBot,falconkirtaran/ArchiveBot,Asparagirl/ArchiveBot,Frogging101/ArchiveBot,ArchiveTeam/ArchiveBot,Asparagirl/ArchiveBot,Asparagirl/ArchiveBot,Frogging101/ArchiveBot,falconkirtaran/ArchiveBot,JesseWeinstein/ArchiveBot,JesseWeinstein/ArchiveBot,Frogging101/ArchiveBot,Asparagirl/ArchiveBot,JesseWeinstein/ArchiveBot,falconkirtaran/ArchiveBot,emijrp/ArchiveBot,JesseWeinstein/ArchiveBot,emijrp/ArchiveBot,Frogging101/ArchiveBot