Added -IM4 to autoreconf for libsndfile.
flex: disable shared for $(BUILD) target
harfbuzz: update
new package: gendef

Like widl, the code ships with mingw-w64. This tool is useful
for generating .def files from dlls, especially x86_64 dlls.
Merge pull request #556 from eivindkv/master

Added -IM4 to autoreconf for libsndfile.
mxe-conf.cmake: Add Boost_THREADAPI

Closes #560.
fix HTML in entry for package gendef
log4cxx: fix build with latest apr update
aubio: fix for $(TARGET)-ar
apr-util: portability fix for $(SED)
ftgl: workaround for case-insensitive filesystems
libf2c: retry build with single job
gnutls: update

3.3 is now the stable branch.
vmime: enable shared build
vmime: install the DLL
dbus: update
librtmp: switch to dev version and enable shared

fixes #566
xapian-core: update and enable shared
automake: update and allow v1.14x

see #517
librtmp: call *-pkg-config only for static builds