Prohibit setting budget values greater than num_periods

* Add unit test to verify changes
* gnc_budget_set_account_period_value returns without doing anything
  if requested period value is greater than num_periods
* Add warning message when setting invalid period

Author: R Ratliff <ratliff.bobby@gmail.com>

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23335 57a11ea4-9604-0410-9ed3-97b8803252fd
Add off-by-one warning in comment

Taken from https://bugzilla.gnome.org/show_bug.cgi?id=709329#c7

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23336 57a11ea4-9604-0410-9ed3-97b8803252fd
Small XDG_DATA_DIRS improvements

- win32: improve iss script to only replace the real XDG_DATA_DIRS path, not the comment
- use $(datadir) instead of $(prefix)/share, for the rare case someone configures with
  --datadir=DIR

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23337 57a11ea4-9604-0410-9ed3-97b8803252fd
Bug 710871 - Remove errant $.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23338 57a11ea4-9604-0410-9ed3-97b8803252fd
Bug 710871 - Undo my last two commits.

Wrong solution to the problem.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23340 57a11ea4-9604-0410-9ed3-97b8803252fd
Bump required automake version to 1.11

see https://www.gnu.org/software/automake/manual/html_node/Obsolete-Macros.html
and http://lists.gnucash.org/logs/2013/10/2013-10-27.html#T16:03:07

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23341 57a11ea4-9604-0410-9ed3-97b8803252fd
Fix a typo in --with-qt3-wizard-package.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23342 57a11ea4-9604-0410-9ed3-97b8803252fd
Add --with-xdg-data-dirs to specify default search path for XDG data directories.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23343 57a11ea4-9604-0410-9ed3-97b8803252fd
Rename .texinfo files to .texi to get rid of the autogen.sh warning.

I am wondering if anybody still uses the content of this directory.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23344 57a11ea4-9604-0410-9ed3-97b8803252fd
Use the symbol in iso-4217-currencies by default

Author:    Frédéric Perrin <frederic.perrin@resel.fr>

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23345 57a11ea4-9604-0410-9ed3-97b8803252fd