Merge pull request #139 from xushiwei/strm

test.Diff: remove dep of *testing.T

Merge pull request #138 from xushiwei/strm

x/stream: writeCache creates temp file to avoid concurrent write

Merge pull request #135 from xushiwei/q

rename GopXXX => XGoXXX

Merge pull request #134 from xushiwei/q

rename gop => xgo

Update classfile.go

Merge pull request #129 from xushiwei/q

osx: Check

Merge pull request #128 from xushiwei/q

x/xgo/osx => x/osx

Merge pull request #126 from xushiwei/q

x/cmd/tool

Merge pull request #124 from xushiwei/q

x/rfs: remote fs; x/http/fs/cached => cached.v1

Merge pull request #123 from xushiwei/q

mv gop builtin packages => qiniu/x