Added pluggable template parser docs.
From the dev list, changed HTMLTemplateExpr to translate all dots in template
variables to underscores, since EXPR's don't do dots, just like TemplateToolkit.
no className is passed and the invocant's class is Asset. This is
due to the root. In the db, the root Asset has the className WebGUI::Asset,
and the getRoot method matches this.
Changed the failing test in Asset.t to look for a WebGUI::Asset to be returned.
Added two tests to Asset.t to validate the object returned by Asset->getRoot method.
Reverted previous work and updated the POD for Asset->new.
The first tests, Asset_diagnose.t checks that assetIds match in tables
asset, assetData and each Asset's default table.
Asset/Wobject/DataForm_diagnose.t adds tests for verifying DataForm
collateral tables, DataForm_field and DataForm_tab. With a few
small changes, the test could also cover the DataForm data tables,
DataForm_entry and DataForm_entryData.
The tests are optimized to do a quick preliminary test, and if this
test fails, then an in-depth test is run. This second test will
run a VERY VERY VERY long time, but will tell you exactly what's
missing from your tables.
The new tests require the module Test::Deep, for comparing data structures.
