Add graphql-go with null inputs support

[mpenick]

No description provided.

[mpenick]

To use:

GOPRIVATE="github.com/riptano/*" go get

Example:

Create the table

mutation {
  createTable(name: "books", 
    partitionKeys: [{name: "title", type: {basic: TEXT}}]
  	values:[{name: "pages", type: {basic:INT}}])
}

Insert value with a null

mutation {
  insertBooks(data: {
    title:"abc",
    pages: null
  }) {
    applied
  }
}

Select value

query{
  books(data: {
    title:"abc"
  }) {
    values {
      title
      pages
    }
  }
}

[mpenick]

Having a private dependency is not good for CI. I'll look into moving this to datastax instead of riptano. Or we can use just use my public branch...

It was a pain, but I got CI working on travis CI. Still might be easier to just put it under datastax.

[jorgebay]

good idea

[jorgebay]

NICE!

we can use just use my public branch

I don't see a problem in using a public repo, under riptano, datastax or under your name, it will make our lives easier and it should be OSS eventually.