cloudbees-sdk 1.3.1

Closes #17749.

Signed-off-by: Adam Vandenberg <flangy@gmail.com>
libxml2 2.9.0
Shrink DependencyCollector#parse_symbol_spec and add tests
Add :libltdl dep for libtool's libltdl

The :libtool dep is implicitly a build-time dep; :libltdl can be used
for software that uses the ltdl library at runtime.
imagemagick: depends on libltdl

Fixes #17732.
py2cairo: depends on pkg-config
berkeley-db: add --enable-sql option

Closes #15166.
CurlDownloadStrategy: remove pointless type introspection
kill dead code
Don't reinvent IndexError here
gtk+ 2.24.15
at-spi2-atk: fix patch