Merge branch 'master' into development

CHANGELOG.md

+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](http://keepachangelog.com/)
+and this project adheres to [Semantic Versioning](http://semver.org/).
+
+## 0.1.0 - 2016-10-10
+### Added
+**Database**
+- MonetDB connection middleware
+- MongoDB connection middleware
+- query_exec custom middleware (promise that executes an SQL query with optional parameters)
+- This version depends on the version 0.1.0 of [MonetDB schema](https://gitlab.c3sl.ufpr.br/simcaq/monetdb)
+
+**Enrollments**
+- Enrollments route with all sub dependencies
+
+**Middlewares**
+- parseParams middleware to parse HTTP GET params
+- query middleware that serves as an interface between squel generated sql and the query execution
+- response middleware that gives a standard response (json, csv or xml)