Add failed task to reproduce error if outfile is specified other than default ones
Fix wrong require.js lib path if spec runner is explicitly set to elsewhere other than default location

[!] It depends on `grunt-contrib-jasmine` v0.6.0 which passes the location of spec runner
[!] `grunt-contrib-jasmine` v0.6.0 and above is running by Jasmine 2.0
[+] Update dependencies and API of `grunt-contrib-jasmine`
Update README
Fix boot file cannot be found
Update README