Should probably fail if an include regex does not match

[keith-turner]

If a an include regex does not match any types, it indicates a problem and the APILyzer should probably fail in this case. I ran into a case where I specified multiple include regexs and one of them matched nothing when I expected it to match something.

[ctubbsii]

We could probably print out a warning if an include rule is completely unused. Maybe later, add an option to fail instead. This won't catch everything... there may be redundant rules which are both used, but because of short-circuiting, we didn't notice that one was unneeded.

[keith-turner]

The situation I ran into that prompted me open this issue was :

• forgot to add dependency on accumulo-minicluster to pom
• added a rule to include some types from accumulo-minicluster