3.1.0rc1
doc theme configurable, fix #874
Merge pull request #879 from spmjs/doc-theme-configurable

doc theme configurable, fix #874
3.1.0-rc2
filter non-directory versions
handle directory when getting source file Fix #876
check file existence before lstat, fix https://github.com/spmjs/spm/commit/99001c471593b6bca114a74b52e71ba001a18c81
should be username rather than name
clean title tag
not add ga script when debug locally
remove engines & tests field in init template