Move gnc-warnings.c from POTFILES.skip to POTFILES.ignore

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23566 57a11ea4-9604-0410-9ed3-97b8803252fd
Rename some directories in src/import-export

The gschema.xml.in.in pathnames were too long for versions with more than
5 characters, e.g. 2.5.10, so tar was rejecting them. aqbanking, csv-import,
csv-export, and qif-import are now aqb, csv-imp, csv-exp, and qif-imp,
respectively.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23567 57a11ea4-9604-0410-9ed3-97b8803252fd
Release 2.5.10

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23568 57a11ea4-9604-0410-9ed3-97b8803252fd