JCLOUDS-570: Fallback to the GetImageStrategy

If the TemplateBuilderImpl is given an imageId but the image can not be
found in the image cache, fallback to the GetImageStrategy to perform a
call to the provider to try to get it.

We've seen that in some cases images are not returned in the image list
but they actually exist in the provider. This fix won't make them
available when filtering by other properties such as the operating system,
etc, but at least will make them available if their id is known.
JCLOUDS-546: Remove Javadoc @author annotations

Annotations removed with:

find -name \*.java | xargs sed -i /@author/d

Empty Javadoc removed with multiple iterations of:

find -name \*.java | xargs sed -i -z 's/ \*\n \*\// \*\//'
find -name \*.java | xargs sed -i -z 's/ \* \n \*\// \*\//'
find -name \*.java | xargs sed -i -z 's/\/\*\*\n \*\/\n//'
JCLOUDS-546: Enforce no Javadoc @author annotation
Upgrade to findbugs-maven-plugin 2.5.4

This also upgrades FindBugs to 2.0.3.  Notably this improves
compatibility with Guava constructs.  Changelogs:

https://jira.codehaus.org/secure/ReleaseNote.jspa?projectId=11701&version=19833
http://findbugs.sourceforge.net/Changes.html
Adding a test to check for JCLOUDS-278

Contributed by Bill Branan.
Cleaning up Checkstyle violations from b1c1636 and 39f77ad
JCLOUDS-583: Updates HP Cloud compute provider to work with 13.5 release
JCLOUDS-582: Enhancements to availability zones api