JCLOUDS-563: Upgrade parent pom to version 14
JCLOUDS-564. Add ephemeral disks for m3.xlarge and m3.2xlarge sizes
Update pre-ASF copyright notices
Upgrade to maven-findbugs-plugin 2.5.3

Changelog:
http://jira.codehaus.org/secure/ReleaseNote.jspa?projectId=11701&version=17239
Upgrade to Checkstyle 2.12.1

Checkstyle 2.12 changelog:
http://jira.codehaus.org/secure/ReleaseNote.jspa?projectId=11127&version=19723

Checkstyle 2.12.1 changelog:
http://jira.codehaus.org/secure/ReleaseNote.jspa?projectId=11127&version=20236

Checkstyle 5.7 changelog:
http://checkstyle.sourceforge.net/releasenotes.html