请merge 一下fixed "Buffer is not defined" 到master 1.08最新版本

[dragonlge]

fixed "Buffer is not defined" in ebml(2.2.x)/lib/ebml/tools.js line 44 "var buffer = new Buffer(length);" #2
请merge 一下这个 最新版本依然有buffer is not defined 问题

[dragonlge]

#2

[bzyiostream]

Buffer is not defined

[itlwei]

Buffer is not defined

[bingochaos]

still Buffer is not defined

[StaZhu]

still Buffer is not defined

Please consider using WebCodec encode a mp4 file as a replacement plan. You can also submit a pull request to fix this and make it able to work in browser, thanks!