Docker rough draft works

Created a docker-compose script with 2 containers, one for the app/web, and one for the db.  This will in the future ideally be split into 3, one each for app/db/web, but baby steps.  Committing before I accidentally break it again.

.gitignore

@@ -0,0 +1,15 @@
+target/
+pom.xml.tag
+pom.xml.releaseBackup
+pom.xml.versionsBackup
+pom.xml.next
+release.properties
+dependency-reduced-pom.xml
+buildNumber.properties
+.mvn/timing.properties
+# https://github.com/takari/maven-wrapper#usage-without-binary-jar
+.mvn/wrapper/maven-wrapper.jar
+
+database/
+replay/
+replays/