[Setools] Gjallar Resources

[Keith Hodges]

In moving Gjallar to use Seaside 2.8 I have modified how Gjallar 
accesses its resources.

Keith

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New grand scheme for handling resources using WAFileLibrary.

1. All of the defaults are in the in-image file library 
Q2DefaultResources. (so external files are not needed to deploy gjallar)

2. Additional in-image resource sets can be provided as subclasses of 
Q2Resources, these inherit their defaults
from Q2DefaultResources. The resource set is used if its 
Q2MyResources-c-#libraryName matches the inifile setting 
'resourcesDirectory'.

3. Additional user-customized resources can be placed in a directory 
nominated by 'resourcesDirectory', these, if present, override, 1 and 2, 
above.

Usage in code:

html image url: (Q2Resources / 'gjallar.png')

this is an extension to the standard seaside 2.8 approach which would be

html image url: (Q2Resources / #gjallarPng)

notes: Gjallar file libraries inherit their file selectors whereas 
standard WAFileLibrary does not. Gjallar inherits the standard seaside 
file libraries, but needs the potential to override the defaults 
(especially kalseyTabsCss).