Eth module (#103)

* starter

* testing client with ganache

* Squashed 'contracts/' content from commit ab4fd0e

git-subtree-dir: contracts
git-subtree-split: ab4fd0e

* contract wrappers and bindings

* subscribed to deposits/exists. Some tests

* added wrappers to the contracts folder

* Squashed 'contracts/' changes from ab4fd0e..dc28e6a

dc28e6a [Audit Milestone] No rootchain finality checks (#79)
b7ddf5c Simple Merkle Tree (#77)
62a9462 position in the exit struct. removed helpers (#78)

git-subtree-dir: contracts
git-subtree-split: dc28e6a

* added clean to npm script. temp removed wrappers

* Squashed 'contracts/' changes from dc28e6a..4fcc49e

4fcc49e doc typo (#83)
088adc7 [Audit milestone] Fee withdrawal for validators  (#80)
bc1b116 Finalize Revert (#82)

git-subtree-dir: contracts
git-subtree-split: 4fcc49e

* updated wrappers

* Squashed 'contracts/' changes from 4fcc49e..1b58d54

1b58d54 added eth blocknum to the deposit struct (#85)

git-subtree-dir: contracts
git-subtree-split: 1b58d54

* deposits with finality checks

* removed err from HasTxBeenExited

* refactors and added tests. Fixed deposit encoding/decoding

* typo

* changed rlp to json

* gopkg fix, updated travis

travis

travis fix

rearrange travis

avoid timeout

npm install

longer sleep time

cd back

changed back to sleep 5

* Squashed 'contracts/' changes from 1b58d54..7404701

7404701 Hamdi/fee challenge (#87)

git-subtree-dir: contracts
git-subtree-split: 7404701

* subtree mods

* Squashed 'contracts/' changes from 7404701..c2932c6

c2932c6 renamed docs and fixed a typo (#89)
646fcd9 Colin/deposit priority (#90)

git-subtree-dir: contracts
git-subtree-split: c2932c6

* first revision of the eth module

* hastxbeenexited more robust like getdeposit

* travis

* race condition

* addressed feedback

.gitignore

@@ -1 +1,4 @@
-vendor/
+.DS_Store
+vendor/
+contracts/abi
+contracts/node_modules

.travis.yml

@@ -1,7 +1,7 @@
 language: go
 
 go:
-  - 1.10.x
+  - 1.11.x
 
 env:
   - DEP_VERSION="0.4.1"
@@ -15,7 +15,16 @@ before_install:
 install:
   - dep ensure -vendor-only
 
+before_script:
+  - npm install -g [email protected] [email protected]
+
 script:
+  - ganache-cli -m=plasma > /dev/null &
+  - sleep 5
+  - cd contracts/
+  - npm install
+  - truffle migrate
+  - cd ../
   - go test -race -coverprofile=coverage.txt -covermode=atomic -v ./...
 
 after_success:

contracts/.gitattributes

@@ -0,0 +1 @@
+*.sol linguist-language=Solidity

contracts/.gitignore

@@ -0,0 +1,4 @@
+node_modules/
+coverage/
+coverage.json
+build/

contracts/.solcover.js

@@ -0,0 +1,3 @@
+module.exports = {
+  copyNodeModules: true
+}

contracts/.travis.yml

@@ -0,0 +1,16 @@
+language: node_js
+
+node_js: "node"
+
+before_script:
+  - npm install -g [email protected] [email protected]
+  - npm install
+
+script:
+  - ganache-cli -m "they only media any modify banner suffer pole tag rule creek harvest" > /dev/null &
+  - sleep 5
+  - truffle migrate
+  - truffle test
+
+after_script:
+  - npm run coverage && cat coverage/lcov.info | coveralls

contracts/CONTRIBUTING.md

@@ -0,0 +1,35 @@
+# Contributing
+
+Thank you for considering making contributions to Fourth State's Plasma MVP implementation! We welcome contributions from anyone! See the [open issues](https://github.com/FourthState/plasma-mvp-rootchain/issues) for things we need help with!
+
+Contribute to design discussions and conversation by joining our [Discord Server](https://discord.gg/YTB5A4P).
+
+## How to get started:
+
+Fork, then clone the repo:
+
+If you have ssh keys:
+``git clone [email protected]:your-username/plasma-mvp-rootchain``
+
+Otherwise:
+``git clone https://github.com/your-username/plasma-mvp-rootchain``
+
+Install dependencies with:
+``npm install``
+
+**Note**: requires Solidity 0.4.24 and Truffle 4.1.14
+
+Make sure the tests pass:
+1. Start ganache-cli: ``ganache-cli -m=plasma_mvp``
+2. Run tests: ``truffle test``
+
+Create a branch that is named off the feature you are trying to implement. See these [guidelines](https://nvie.com/posts/a-successful-git-branching-model/)
+
+Make your changes. Add tests and comment those changes. 
+
+If your tests pass, push to your fork and [submit a pull request](https://github.com/FourthState/plasma-mvp-rootchain/pulls) to the master branch. 
+
+## Proposals:
+
+If you would like to propose a protocol change, open up an issue. If the reviewers decide the proposed change is in line with the project's aim, then a writeup should also be added to the [research repository](https://github.com/FourthState/plasma-research). It is also advisable to publish the proposed change to [Eth Research](https://ethresear.ch/), so other plasma implementations can benefit from the proposed change. 
+