Fix es5-shim and lodash links in README.md
Merge pull request #11 from joshuacc/patch-1

Fix es5-shim and lodash links in README.md
Updating tape
Updating tape
Adding passing tests to close #12
Object.keys(arguments) returns string keys)
Oops, fixing an undefined var.
If input is a String or Arguments object, use a for loop and include the integer keys.
Adding a failing test for boxed primitives with extra properties.
When a String or Arguments object, in a browser where the keys aren't enumerable, loop over them with a for loop.
Object key ordering is never reliable
Another attempt to make both String and Arguments objects work in ES3.
Second attempt.
Making sure npm is updated in travis.
Make sure unstable nodes, and old (not the 2 latest stable) nodes, don't fail tests.
Updating covert