Don't rely on bower for browserified version.

We can't rely on paths to the `bower_components` directory being where
we think they are since each project can change where bower components
get installed (even for dependencies) with .bowerrc configuration.

Rather than rely on bower at all, I used the NPM versions of
`webmaker-analytics` and `cookie`. For EventEmitter, I changed the
method calls from the implementation-specific `emitEvent` to `emit`,
which is compatible with node and the browser implementation the AMD
version uses.
Rebuild minified version.
Merge pull request #39 from brianloveswords/browserify

Don't rely on bower for CommonJS requires.
0.2.0
Bug 1049943 - Login Token API support
s
build
configurable session expiry
S
fixes to request and authenticateToken
updates
uidExists
updates
updates
fix typo
default is session cookie, not one-year cookie