'Find & Replace' ignores 'Flowed text' objects

[su_v]

Follow-up report to
- Bug #909328 “Find / Replace dialog”
  https://bugs.launchpad.net/inkscape/+bug/909328

The reworked 'Find & Replace' dialog ignores 'Flowed Text' objects in any kind of search possible. While the object type 'Text' didn't include flowed text in the old dialog (0.48) either, it was at least possible to search by id ('flowRoot') to select those flowed text elements which have auto-generated ids. In 0.91 and trunk, no matter what search term, and scope one uses, it is not possible to find and select all flowed text objects in the current document (one exception: search without search term, all object types including hidden ones does find and select the object inside <flowRegion>, but not the text object (or content <flowPara>).

Steps to reproduce:
1) launch 0.91 with default prefs, default new doc
2) create a regular text
3) create a flowed text
4) deselect all
5) find all text objects via 'Edit > Find & Replace' using whatever combination of options the dialog allows.

Reproduced with Inkscape 0.91 and 0.91+devel r13892 on OS X 10.7.5

[jazzynico (jazzynico)]

Confirmed on Windows XP (32bits), Inkscape trunk rev. 13901.

[jazzynico (jazzynico)]

Patch tested on Windows XP (32bits), with Inkscape trunk rev. 13901.
Please test!

[jazzynico (jazzynico)]

Patch tested on Crunchbang Waldorf and committed revision 13903.

[ScislaC (scislac)]

Backported to 0.91.x in r13743.