GnuCash 2.6.19

What's new in this version:

Bug fixes:
- Disabling OFX, AqBanking or python-bindings support cripples the dist build target. (Partial: The requisite files for AQB and OFX are provided. There remain ways to break the distribution.)
- FTBFS with libdbi 0.9.0-5 on Debian
- Failed to create file "/usr/share/glib-2.0/schemas/gschemas.compiled.XY789Y"

Some other fixes not associated with reported bugs:
- A better way to handle MySQL's 0000-00-00 invalid date indicator
- Fix python build and test errors on Mac
- Add translator hint comments to C and glade files
- Improve type of bank accounts in SKR03
- Stop testing GObject's handling of invalid parameters
- Translation Updates: Dutch, German, Serbian

Important update notification:
- If you are updating from gnucash 2.6.0-2.6.4 on linux, you are advised to remove the guile user cache or several parts of gnucash may fail to work properly. This user cache can be found in .cache/guile/ccache/2.0-LE-8-2.0/ in your home directory. It's safe to remove the whole contents of this directory
- Note .cache is a hidden folder in your home directory. You may have to change your file manager's settings in order to view hidden files and folders