PROPOSAL TO CLOSE WON'T FIX and add text to primer

Basis:

To properly modify information (lists/arrays/xml documents) in concurrent threads requires a level of 
isolation/synchronization, and CDL only provides a coarse mechanism for this - so would prefer to 
leave these modifications for ***silentActions***, which can then implement any 
necessary synchronization.

We should not really be adding further activities that make this a more turing complete language.

Thus silentActions can be used as a suitable silent mechanism for accessing and modifying lists and 
arrays and therefore we do not need explicit support in WS-CDL to do this. 

The primer should include an example of how this might be done using WS-CDL, silentActions and a 
suitable end point language.