Image.PNG: Minor change.

Use the proper SET_SVALUE_ macro instead of accessing the fields directly.
Image.PNG: Fixed leak of arrays in __decode().
Calendar.mkrules: Added some more files to ignore.
Updated to tzdata2014h.
release number bumped to 892 by export.pike
release number bumped to 893 by export.pike
_Roxen: Fixed buffer overrun in http_decode_string().

Also increases the strictness of a few related testsuite tests.
release number bumped to 894 by export.pike
release number bumped to 895 by export.pike
SSL.handshake: Support setting the minimum required version.

The SSL 3.0 protocol can now be disabled by setting min_version in
the context to SSL.Constants.PROTOCOL_TLS_1_0.

Backported API from Pike 8.0. Note that the constants differ
from Pike 8.0 and later, so use the provided symbolic values.
SSL.Constants: Make the PROTOCOL_* constants forward compatible.

As these values have a tendency to get stuck in configuration files
and the like, make sure that they are forward-compatible with Pike 8.0.
SSL: Fix "Invalid description".

Some alerts were missing from ALERT_description.
release number bumped to 896 by export.pike
release number bumped to 897 by export.pike
SSL: Added some more Autodoc.