[javascript] remove ajaxHtmlHead from dom response once it has been processed.
This fixes #549138: treeview: folding is broken
The new, systematic, pageid management (introduced by rev 37b376bb4088) made
the treeview return :
<ul class="treeview">...</ul>
<div class="ajaxHtmlHead">...</div>
which was then processed by getDomFromResponse and wrapped into
a single div node :
<div>
<ul class="treeview">...</ul>
<div class="ajaxHtmlHead">...</div>
</div>
In the treeview case, the node inserted into the tree was the wrapping
<div> instead of the <ul>, causing the folding bug mentioned in the
ticket.
[system]
db-driver = sqlite
db-host =
adapter = native
db-name = tmpdb-extern
db-encoding = UTF-8
db-user = admin
db-password = gingkow
[admin]
login = admin
password = gingkow