Replace deprecated g_dirname
Periodic merge of branch 'maint'

- Replace deprecated g_dirname
Re-enable loading and saving gnucashdotdir/accelerator-home on OSX

Per user request. Permits user to customize the accelerator map and have the result
survive upgrades. Loads gnucashdotdir/accelerator-home if it exists, otherwise loads
share/gnucash/ui/osx_accel_map.
Make compatible to libdbi >= 0.9.0

Several functions of libdbi are now deprecated (e.g.: dbi_conn_new) and have
been replaced with _r functions (e.g.: dbi_conn_new_r) which now require a
dbi_instance passed as a parameter. This patch checks if the version of libdbi
is higher or equal than 0.9.0 and iff so, it uses the new _r functions instead
of the deprecated ones.
Correct usage of realloc in gnc_xml_be_get_file_lock

This patch fixes a common mistake where the return value of the function call
is set to the passed buffer and therefore previous allocated memory is lost if
the realloc call fails. Therefore a temporary variable is introduced and the
memory will be freed if the reallocation fails. In addition the return value of
the malloc allocation is checked.
Merge branch 'maint'
* Morritz Lipp's libdbi-0.9.0 compatibility fix
* Morritz Lipp's realloc return value fix
* Re-enable save and enable loading of $GNC_DOT_DIR/accelerator-map on OSX
Bug726449 - Budget Barchart does not show up if running sum is selected
Add fixed EUR-LVL conversion rate to gnc_euro_rates

This is a follow up on bug 727338
Update Latvian translation

This is a follow up on bug 727338
Added kok and kok@latin to LINGUAS: Konkani in Devanagari script and latin script translations.
Gnucash translation into Konkani in the Devanagari script.
Gnucash translation into Konkani, shown in Latin script.
Remove unused function yahoo-get-historical-quotes

This gets rid of the dependency on guile-www as well
Bug 728841 - XML backend does not always store KVP slots

add appropriate code for slot handling in the relevant subclasses

	modified:   src/backend/xml/gnc-address-xml-v2.c
	modified:   src/backend/xml/gnc-entry-xml-v2.c
	modified:   src/backend/xml/gnc-job-xml-v2.c
	modified:   src/backend/xml/gnc-order-xml-v2.c
	modified:   src/backend/xml/gnc-tax-table-xml-v2.c
Prevent older gnucash versions from opening a data file if previously unhandled kvps are used

Prior to gnucash 26.4 with kvps for address, entry, job and taxtable objects
were not handled properly (but not in use either).
This patch will prevent any older version of gnucash to open a data file if a newer
version has written any of the above kvps.

A follow up on bug 728841
Merge branch 'maint'

* Bug726449 - Budget Barchart does not show up if running sum is selected
* Add fixed EUR-LVL conversion rate to gnc_euro_rates
* Update Latvian translation
* Add Indian Konkani translation
* Remove unused function yahoo-get-historical-quotes
* Fix handling of kvps for address, entry, job, order and taxtable objects
* Prevent older gnucash versions from loading data files with said kvps