initail import
Fix incorrect "node-browserify" dev dependency

The module is just called "browserify", not "node-browserify". An `npm install`
in this repo fails because of this difference, since a tarball containing a
module called "browserify" is downloaded yet `npm` is expecting one containing
a "node-browserify" module.

    $ npm install
    npm ERR! Error: Invalid Package: expected node-browserify but found browserify

I guess no one has tried running `npm install` here until today: npm/npm#6202
Merge pull request #7 from KenanY/fix-browserify

Fix incorrect "node-browserify" dev dependency
added and tested browser shim for bignum
added browser shims
added ecdsaOps
passing initail for VM in browser
enabled all tests for testling
Update README.md
Update README.md
added travis
added travis
# Please enter the commit message for your changes. Lines starting
# with '#' will be ignored, and an empty message aborts the commit.
# On branch merging
# Your branch is behind 'origin/merging' by 2 commits, and can be fast-forwarded.
#   (use "git pull" to update your local branch)
#
# Changes to be committed:
#	new file:   .travis.yml
#	modified:   browser/bignum.js
#	modified:   package.json
#
# Untracked files:
#	.package.json.swp
#	.vmTest.js.swp
#	browser/.bignum.js.swp
#	bundle.js
#	ethereum-min.js
#	lib/.block.js.swp
#	lib/.blockHeader.js.swp
#	lib/.blockchain.js.swp
#	lib/ecdsaOps.js
#	lib/vm/.runCode.js.swp
#	test.html
#	vmTest.js
#
added travis
Merge branch 'merging'
Delete .gitmodules
Update README.md
Update README.md
added forgotten file
Update network.js
updated secp256k1