gnucash master: Multiple changes pushed

[John Ralls]

Updated	 via  https://github.com/Gnucash/gnucash/commit/66e81040 (commit)
	 via  https://github.com/Gnucash/gnucash/commit/e66dd12a (commit)
	from  https://github.com/Gnucash/gnucash/commit/c4c45e95 (commit)



commit 66e81040cb4ffa1315fc9e63bb950d67967c344e
Author: John Ralls <jralls at ceridwen.us>
Date:   Fri Mar 17 15:18:00 2017 -0700

    Fix DST calculation error.
    
    The symptom was that in 2017 the PDT->PST transition was set a week
    late. The cause was that the timezone lookup function went the wrong
    way, finding the *next* timezone rule instead of the desired one because
    timezone rules are stored for the year that they start rather than when
    they end. Fix reverses the search to find the correct timezone rule.
    
    Commit includes new tests to detect the problem.

commit e66dd12aa91e60ba33b436dfc3e109fe0736b438
Author: John Ralls <jralls at ceridwen.us>
Date:   Fri Mar 17 15:16:18 2017 -0700

    Fix query period in test-account-get-trans-type-splits-interval.
    
    The query runs from 00:00:00 on the start date to 23:59:59 on the end
    date, effectively one day more than the number specified.



Summary of changes:
 src/libqof/qof/gnc-timezone.cpp                         | 17 +++++++----------
 src/libqof/qof/test/gtest-gnc-datetime.cpp              | 11 +++++++++++
 src/libqof/qof/test/gtest-gnc-timezone.cpp              |  8 +++++---
 src/libqof/qof/test/test-gnc-date.c                     | 15 ++++++++++++---
 src/report/report-system/test/test-report-utilities.scm | 10 ++++++++--
 5 files changed, 43 insertions(+), 18 deletions(-)