Merge pull request #653 from Rayi/master

修复Shim插件在未指定src时不工作的问题
Refactor merged code
Add seajs.dir property
Add specs for seajs.dir
Fix a bug for plugin loading. close #652
Make test runner more robust in IE6-7
add totoro-test adapter
Merge pull request #659 from leoner/master

添加 totoro-test 适配模块
Merge adapter.js for totoro
Update totoro target
Update totoro target
add test error info
Merge pull request #667 from leoner/master

完善测试用例失败时的信息提示
Fix unit bug. close #669
add tools for test http
fix Makefile.
test http in travis. make package.json right
no need for install grunt in travis test. just install node-static
Merge pull request #680 from seajs/tools

Fix on tools
Empty test page