enter rc

• test windows->chrome,360,qq browser

Bug Fixes

• asset: fix "load texture asset": now set format (73397e5)
• package: fix "dispose renderGroup component before export and import package cause check error" bug (f5abd59)
• package: fix "material assets after import" bug (5c6fec4)

Features

• commit dist/index.js, public/css/index.css; remove index.min.css (f4d1e77)
• asset: texture asset: support load jpeg (c0b019c)
• engine: update wonder.js to 1.0.0-rc.1 (a1cdedb)
• engine: update wonder.js version (aa87847)
• focus: set edit camera->arcball move and wheel speed (a8192ca)
• publish: update engine files (48d21e3)