* **bundlers:** fix issue that caused some bundlers not to be able to locate `/lib` (#19) ([dd8fdfe](https://github.com/blesh/symbol-observable/commit/dd8fdfe)), closes [(#19](https://github.com/(/issues/19) [#17](https://github.com/blesh/symbol-observable/issues/17)
* **index.js:** use typeof to check for global or window definitions (#8) ([5f4c2c6](https://github.com/blesh/symbol-observable/commit/5f4c2c6))
* **types:** use default syntax for typedef ([240e3a6](https://github.com/blesh/symbol-observable/commit/240e3a6))
* **TypeScript:** exported ponyfill now works with TypeScript ([c0b894e](https://github.com/blesh/symbol-observable/commit/c0b894e))
### Features
* **es2015:** add es2015 implementation to support rollup (#10) ([7a41de9](https://github.com/blesh/symbol-observable/commit/7a41de9))
### BREAKING CHANGES
* TypeScript: CJS users will now have to `require('symbol-observable').default` rather than just `require('symbol-observable')` this was done to better support ES6 module bundlers.
* **IE8 support:** Ensure ES3 support so IE8 is happy ([9aaa7c3](https://github.com/blesh/symbol-observable/commit/9aaa7c3))
* **Symbol.observable:** should NOT equal `Symbol.for('observable')`. ([3b0fdee](https://github.com/blesh/symbol-observable/commit/3b0fdee)), closes [#7](https://github.com/blesh/symbol-observable/issues/7)