Fix Symfony Plugin's DebugCommand output

The output was not displaying correctly:

1) The Command output displayed nothing because the if statement was
   comparing MethodName() to MethodNameCommand(), thus it would never
   match, so continue was always executed

2) Formatting for command and event output was displaying incorrectly
   when the command or event id was shorter than the actual column
   header text.

Issues solved by:

1) Fixing the method name check to strip off 'Command' from the end
   before doing the comparison against MethodName()

2) Intialized the maxFoo variables to the column header text's length
   instead of 0, to ensure they'd always be a minium of the column
   header length, thus formatting fixed