Different limit policy for major and minor versions and Intermediate versions

[lelmarir]

Hi,

i've added some functionality you may like:

# number of minor versions to be kept or 0 to keep all
maxVersionPolicy.maxMinorVersions=5
# if not zero will be kept intermediate minor versions wich are multiple of the specified value (should be lesser than maxMinorVersions) or 0 to disable
#   eg. if we have versions from 1.0 to 1.4 (with maxMinorVersions=5 and keepIntermediateMinorVersions=5) and we create vesion 1.5, 1.1 will be deleted instead of 1.0
maxVersionPolicy.keepIntermediateMinorVersions=5
# number of major versions to be kept or 0 to keep all
maxVersionPolicy.maxMajorVersions=5
# like keepIntermediateMinorVersions but for major ones
maxVersionPolicy.keepIntermediateMajorVersions=5 

Please take a look; and feel free to merge or cherry pick

I've changed the moduleId, so, if you pick that change remember to first uninstall the previous module before installing this it they will conflict

[jottley]

I am going to bring the add-on to work against 5.1. At the moment these changes conflict with what is in master. Can you take a look to see what the conflicts are? Then I can look at merging it in.