Sample plug-ins for LDM to adjust users' downloads according to their behaviour/reputation/posts/etc.

NB: plugin control modified to use LDM admincp with release 2.2.8

>>> blockaccess-byusergroup-plugin.xml
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When this plugin is installed and active, user's access to LDM is allowed or blocked based on 
their usergroup.  


>>> blockaccess-byposts-plugin.xml
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When this plugin is installed and active, user's access to LDM is allowed or blocked based on 
their usergroup and number of posts they have made.  


>>> blockhit-byposts-plugin.xml
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When this plugin is installed and active, user can access LDM but downloads/plays are allowed/blocked based on 
the number of posts they have made.  


>>> blockhit-bytime-plugin.xml
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When this plugin is installed and active, user downloads/plays can be blocked based on 
time of day.

All plugins add control settings to the LDM admin settings page

