Changelog for BuildCraft 7.99.17

Improvements:

(Most) items now show multiple items per stack when travelling in a pipe if the stack had more than a single item.
[#4080] Re-added the config option to change the rate of oil well generation and generation of a spout.
[#4149] Ported the paintbrush recipe.

Fixed all item pipes having an implict speedup. (Most buildcraft item pipes explicitly do this, so this doesn't really affect normal builds).
Fix cobblestone item pipes sending items about 4 times as fast as they should.
Fix stone item pipes not explicitly slowing down items
Change sandstone item pipes to match stone item pipes.
Fixed item pipes allowing multi-tile tickers to send items down pipes faster then normal
This is primarily a fix for tickers that don't also speed up the client. (Also this sort of speedup behaviour probably won't work with potential future optimisations)
Fixed chutes having a huge pull radius. Use powered obsidian pipes for that.
[#3477] Only the wooden pipe attempts to always face a valid direction.
(This only affects the iron pipe in buildcraft, however addon pipes that extend PipeBehaviourDirection but don't allow the centre will benefit from this).
[#4014] Gate recipes in the assembly table don't check the NBT of the gate provided.
[#4082] Fluids can no longer be mined by Mining Well
[#4124] The direction of an iron pipe cannot be changed by clicking the centre unless the pipe is already facing a direction.
[#4138] Dupe bugs everywhere with tiles and GUI's. No more details here, as it's an exploit.
[#4141] The recipe for the pipe plug requires the quarry to exist, rather than the structure pipe.
This is only a partial fix for the entire issue, which encompasses all recipe mismatches.