Fixed all tests for backend

.gitignore

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+node_modules/*
+.DS_Store
+*~
+.idea/

.travis.yml

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+language: node_js
+sudo: false
+
+node_js:
+  - '0.10'
+  - '0.12'
+  - 'stable'
+
+before_install:
+  - sh arangodb.sh

Readme.md

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+#NODE ACL - ArangoDB backend
+This fork adds ArangoDB backend support to [NODE ACL](https://github.com/OptimalBits/node_acl)
+
+##Installation
+
+Using npm:
+
+```javascript
+npm install acl-arangodb
+```
+
+##Usage
+Download and install [ArangoDB](https://www.arangodb.com/)
+Start ArangoDB with default configuration.
+Create ArangoDB database object in your node.js application.
+Create acl module and instantiate it with ArangoDB backend, passing the ArangoDB object into the backend instance.
+
+```javascript
+// require arangojs
+var arangojs = require('arangojs');
+// Defaults to localhost and '_system' database. See arangojs documentation for configuration options
+var db = arangojs();
+// Set the database for your ACL. Note: You must create the database if it doesn't exist already.
+db.useDatabase('mydb');
+
+// require acl and create ArangoDB backend
+var Acl = require('acl');
+// Doesn't set a 'prefix' for collections and separates buckets into multiple collections.
+acl = new Acl(new Acl.arangodbBackend(db));
+
+// Alternatively, set a prefix and combined buckets into a single collection
+acl = new Acl(new Acl.arangodbBackend(db, 'acl_', true));
+```
+##Testing
+Tested using acl's tests runner against ArangoDB v2.8.2
+
+##Documentation
+See [NODE ACL documentation](https://github.com/OptimalBits/node_acl#documentation)
+See [ArangoDB documentation](https://docs.arangodb.com)
+
+##License
+
+(The MIT License)
+
+Copyright (c) 2016 Nick Harris <[email protected]>
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+'Software'), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

arangodb.sh

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+#!/bin/bash
+
+DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
+cd $DIR
+
+VERSION=2.8.2
+NAME=ArangoDB-$VERSION
+
+if [ ! -d "$DIR/$NAME" ]; then
+  # download ArangoDB
+  wget http://www.arangodb.org/travisCI/$NAME.tar.gz
+  tar zxf $NAME.tar.gz
+fi
+
+PID=$(echo $PPID)
+TMP_DIR="/tmp/arangodb.$PID"
+PID_FILE="/tmp/arangodb.$PID.pid"
+ARANGODB_DIR="$DIR/$NAME"
+
+# create database directory
+mkdir ${TMP_DIR}
+
+${ARANGODB_DIR}/bin/arangod \
+    --database.directory ${TMP_DIR}  \
+    --configuration none  \
+    --server.endpoint tcp://127.0.0.1:8529 \
+    --javascript.startup-directory ${ARANGODB_DIR}/js \
+    --javascript.modules-path ${ARANGODB_DIR}/js/server/modules:${ARANGODB_DIR}/js/common/modules \
+    --javascript.action-directory ${ARANGODB_DIR}/js/actions/system  \
+    --database.maximal-journal-size 1048576  \
+    --server.disable-admin-interface true \
+    --server.disable-authentication true \
+    --javascript.gc-interval 1 &
+
+echo "Waiting until ArangoDB is ready on port 8529"
+while [[ -z `curl -s 'http://127.0.0.1:8529/_api/version' ` ]] ; do
+  echo -n "."
+  sleep 2s
+done
+
+echo "ArangoDB is up"

index.js

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+module.exports = require('acl');
+
+module.exports.__defineGetter__('arangodbBackend', function(){
+    return require('./lib/arangodb-backend.js');
+});