EmbarkSpec & deployAll are not supported anymore, breaking tests

[oskarth]

With git checkout 000-snt-voting-dapp there appears to be some tests that are deprecated using Embark 3.1.2:

embark test
...
EmbarkSpec & deployAll are not supported anymore
You can learn about the new revamped tests here: https://embark.status.im/docs/testing.html

> ag EmbarkSpec
test/controlled.js
9:            EmbarkSpec.deployAll(contractsConfig, async function(accounts) {

test/DelegationProxyTest.js
43:          EmbarkSpec.deployAll(contractsConfig, async function(accountsArr) {

test/erc20token.js
9:        EmbarkSpec.deployAll(contractsConfig, async function(accounts) {

test/testtoken.js
12:    EmbarkSpec.deployAll(contractsConfig, async function(accounts) {

test/minimetoken.js
27:    EmbarkSpec.deployAll(contractsConfig, async function(accountsArr) {

See embarklabs/embark#548

Acceptance criteria

Make embark test green again with latest version of Embark.

[oskarth]

Problem does not on seem to appear on master

> git checkout master
Switched to branch 'master'
Your branch is up to date with 'origin/master'.
> ag EmbarkSpec

EDIT: Ah, appears master doesn't use Embark yet?

> embark test
Compiling contracts
Cannot find file embark.json Please ensure you are running this command inside the Dapp folder
Cannot find file embark.json Please ensure you are running this command inside the Dapp folder