Precompiled lib, use webpack and update dependency versions

[scags9876]

Some useful stuff in here, thought others might benefit from these changes.

• using webpack instead of grunt and browserify
• including a prepublish script to precompile transpiled code and include it in a lib directory in the package published on npm
• upgrading dependencies to work with react 15
• upgrade to lodash 4.x

[scags9876]

Addresses:

#23 #19 #21

[jbrodriguez]

@scags9876 have you published your 'fork' to npm ?

If that's not the case, how can one use your code directly from github (since the compiled lib doesn't exist in github)

[scags9876]

@jbrodriguez I have not published to npm... I'm waiting for @MandarinConLaBarba to merge this PR so he can publish.

In the meantime, i've got the following in my package.json:

"react-tree-menu": "git://github.com/scags9876/react-tree-menu.git",

It points to my master branch on my fork, which has the precompiled lib... see https://github.com/MandarinConLaBarba/react-tree-menu/pull/31#issuecomment-280138789

[scags9876]

this PR now includes the fix for the undefined PropType from https://github.com/MandarinConLaBarba/react-tree-menu/pull/33

[xitarps]

@jbrodriguez I have not published to npm... I'm waiting for @MandarinConLaBarba to merge this PR so he can publish.

In the meantime, i've got the following in my package.json:

"react-tree-menu": "git://github.com/scags9876/react-tree-menu.git",

It points to my master branch on my fork, which has the precompiled lib... see #31 (comment)

Thanks!! helped me a lot!! /o/ Mandou muito! (BR)