Allow inserting tablets into disk drives to access their first internal drive.
Fixed validation of saved resolutions to avoid clamping down vertical resolution (see #560).
Added delay for screen multiblock check on clients, to make it less likely that some tile entities don't have their data when the check is performed; hopefully fixes #560.
Too lazy to test if this works right now, but if it does that'd be cool.
Merge branch 'master' of github.com:MightyPirates/OpenComputers into master-MC1.7.10