update package pcre
update package qwt
package qwt: move to qt5
update package gcc
update package qt
update qt5 module packages
new qt5 modules: qtquickcontrols qtsensors qtserialport
package libgomp: set to gcc version
package qtbase: enable c++11 on darwin
doc update: yasm minimum version
Makefile: add target loop, serialise targets, and update settings file
add mingw-w64 runtime and pthreads implementation, update related toolchain files
Makefile: not all packages have urls (i.e. pthreads) so remove check
various packages: enable/disable mingw-w64 builds
packages libgnurx lensfun: enable mingw-w64 build
various packages: enable/modify mingw-w64 build
various packages: enable/modify mingw-w64 build
package gcc: fix for intrinsics in c++ code
see http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56038
Revert "package qtbase: disable c++11 for i686-w64-mingw32"

This reverts commit aa091bb43d5531983eb62d316f1c842bd6e782ab.
Merge branch 'master' into multi-rebase