Split: Ignore fatal message

It's checked already as a normal message.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23133 57a11ea4-9604-0410-9ed3-97b8803252fd
Guard xaccTransGetRateForCommodity against NULL arguments

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23134 57a11ea4-9604-0410-9ed3-97b8803252fd
Transaction.c: Note a bug discovered in testing.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23135 57a11ea4-9604-0410-9ed3-97b8803252fd
Protect xaccTransIsBalanced against crashing if passed a NULL Transaction

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23136 57a11ea4-9604-0410-9ed3-97b8803252fd
Protect split-iterator from NULL split

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23137 57a11ea4-9604-0410-9ed3-97b8803252fd
[Testing] Create log handlers in one step, clean up in teardown

New functions to simplify creating log handlers for expected log
messages, especially fatal message handlers. Handlers are tracked in the
Fixture and automatically freed during teardown.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23138 57a11ea4-9604-0410-9ed3-97b8803252fd
Unit test Transaction.c

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23139 57a11ea4-9604-0410-9ed3-97b8803252fd
Testing: Split.c: Filter out expected error message.

Includes putting the message-handler cleanup in teardown.

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23140 57a11ea4-9604-0410-9ed3-97b8803252fd
Set mime-type property on AUTHORS and DOCUMENTERS

git-svn-id: svn+ssh://svn.gnucash.org/repo/gnucash/trunk@23141 57a11ea4-9604-0410-9ed3-97b8803252fd