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//'
Renamed FalseIfVaultNotEmpty to be more generic. deleteVault should return false on any IllegalArgumentException.
JCLOUDS-457: Use random vault names in live tests

Now the live tests are not conditioned by the current state of the
account used.