Fix exercises (#11)

* Add a real initial state

The first exercise in a course shouldn't expect student to apply
changes to it.

* Add solution for exercise 1

* Add full tests to exercise 1

* Change CMT config/update pom.xml

* Temp save

* Exercises 0 & 1 passing tests

* Add index.html to exercise 0

* Update solution for exercise 1 and add a test for it

Author: codergo7

code/exercise_001_initial_state/.dockerignore renamed to code/exercise_000_initial_state/.dockerignore

@@ -0,0 +1,17 @@
+## Exercise: Initial State
+
+In this exercise, we will be exploring Quarkus.
+
+Let's have a look at the existing code...
+
+* This repository contains the start of the student app.
+* Import the application in your IDE
+* Run the application by execusting `mvn quarkus:dev` in the
+  folder `code` in the project.
+* Browse to http://localhost:8080/. What do you see?
+* Take a look at the config in http://localhost:8080/q/dev/io.quarkus.quarkus-vertx-http/config
+
+Now that we have taken our first step in Quarkus, let's
+move to the next exercise by executing
+`cmtc next-exercise <path to course root folder>`
+