Separate the "All noncurrency" convenience category in the commodity
selector and the default non-commodity namespace proposed by the QIF
importer because they have different functions.
Also remove the namespace guessing code from qif-dialog because with
only one default non-currency namespace there's nothing to guess.
The changes 09296dfb96, 1373233cd0 and 189db58e6 had caused
inconsistencies. Best restore original guile variable names using
underscore, bound to strings instead of functions returning strings.
This commit tries to do the minimum necessary to move the guile bits from engine
to bindings/guile. As engine is a very central piece in the software, this unfortunately
still touches many other source files:
- A few helper objects have been squashed together:
* engine-helpers-guile.[ch] (of which the c part is extracted from engine-helpers.c)
* gncBusGuile.[ch]
* gnc-hooks-scm.[ch]
- The initialization function of gncmod-engine no longer initializes the scm bits.
Any scm code that wants to interact with the engine code now has to load
the (gnucash engine) scm module, or sometimes (gnucash business-core).
The bulk of changes in this commit actually is updating all the scm consumers to do so.
- scm-scm target has been removed. Instead (gnucash utilities) is part
of scm-engine. A few dependency graphs have been updated for this.
More refinements will be in followup commits.
