I've been battling various resource inclusion issues in my migration from Grails 1.3.7 from Grails 2.0, probably not understanding a few things to begin with.

Firstly, what does 

<g:javascript library="application" />

do? (this was in the default main.gsp provided in Grails 1.3.7).

Secondly, for including jquery across my application, can I just do

<r:require module='jquery' />
<r:layoutResources />

in the top of my main sitemesh page that does the 

 <g:layoutHead /> 
    ...
 <g:layoutBody />

and "be done with it", using the 

<r:layoutResources />

a second time after the

 <g:layoutBody />

Thanks

grails grails-2.0
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