added small optimization to FSStorage.readBlock to read blocks from in-memory buffer if possible
added small optimization to FSStorage.readBlock to read blocks from in-memory buffer if possible

lucamaraschi/webtorrent,dan-hill/webtorrent,madmarks/webtorrent,whitef0x0/webtorrent,loon3/webtorrent,yciabaud/webtorrent,lucamaraschi/webtorrent,LinusU/webtorrent,solderzzc/webtorrent,FabianFrancoRoldan/webtorrent,MiracleBlue/webtorrent,FabianFrancoRoldan/webtorrent,loon3/webtorrent,beni55/webtorrent,gillesdemey/webtorrent,webtorrent/webtorrent,Stiveknx/webtorrent,ericwooley/webtorrent,solderzzc/webtorrent,sideffect0/webtorrent,joshterrill/webtorrent,adriagalin/webtorrent,nicola/webtorrent,arestov/webtorrent,akiva/webtorrent,dan-hill/webtorrent,ngjermundshaug/webtorrent,fisch0920/webtorrent,nicola/webtorrent,feross/webtorrent,MiracleBlue/webtorrent,rom1504/webtorrent,fisch0920/webtorrent,Stiveknx/webtorrent,adriagalin/webtorrent,jamesliu96/webtorrent,karissa/webtorrent,feross/webtorrent,LinusU/webtorrent,rozifus/webtorrent,jamesliu96/webtorrent,tradle/webtorrent,webtorrent/webtorrent,serafinfernandez/webtorrent,sideffect0/webtorrent,ngjermundshaug/webtorrent,akiva/webtorrent,whitef0x0/webtorrent,ericwooley/webtorrent,joshterrill/webtorrent,tradle/webtorrent,jakefb/webtorrent,rozifus/webtorrent,karissa/webtorrent,jakefb/webtorrent,serafinfernandez/webtorrent,madmarks/webtorrent,yciabaud/webtorrent,gillesdemey/webtorrent,beni55/webtorrent