A pure lua debugger.

This debugger is in beta stage.  To make it better, it must receive use (ie, it needs to be merged).  It is rather full featured including:

1. full stack introspection
2. step in/out/over
3. reentrant (ie, multiple debugger statements are allowed)

missing:
4. step up/down
5. ???

agents/monitoring/default/crashreport.lua

@@ -41,12 +41,6 @@ end
 function CrashReporter:submit(callback)
   local productName = virgo.default_name:gsub('%-', '%%%-')
 
-  -- TODO: crash report support on !Linux platforms.
-  if os.type() ~= 'Linux' then
-    callback()
-    return
-  end
-
   local function send_and_delete(file, callback)
     local mtime
     local options = {headers={}}