It looks like activating a profile based on EITHER the absence of a property OR the presence of that property with a particular value is not possible. Is that correct?
For example, suppose I wanted to add in a bunch of plugins if the "skipTests" property was (a) specified with a value of "false" or (b) not specified at all. It looks like I cannot activate a profile that takes (a) and (b) into account. Best, Laird -- http://about.me/lairdnelson