general support of non-function stage(table with a render() method)

git-svn-id: https://singingcicada.xicp.net/svn/seedplugins@78 a948d3e7-c0ca-459f-a804-3cfd5e608bc6
delete rar file

git-svn-id: https://singingcicada.xicp.net/svn/seedplugins@79 a948d3e7-c0ca-459f-a804-3cfd5e608bc6
git ignore of seed_plugins output directory.

git-svn-id: https://singingcicada.xicp.net/svn/seedplugins@80 a948d3e7-c0ca-459f-a804-3cfd5e608bc6
Merge branch 'master' of https://bitbucket.org/tdzl2003/seedplugins