Add Gitian Build descriptors for Boost and wxWidgets.

contrib/boost-win32.yml

+---
+name: "boost"
+suites:
+- "lucid"
+architectures:
+- "i386"
+packages: 
+- "mingw32"
+- "faketime"
+- "zip"
+reference_datetime: "2011-01-30 00:00:00"
+remotes: []
+files:
+- "boost_1_47_0.tar.bz2"
+script: |
+  TMPDIR="$HOME/tmpdir"
+  mkdir -p $TMPDIR/bin/$GBUILD_BITS $TMPDIR/include
+  tar xjf boost_1_47_0.tar.bz2
+  cd boost_1_47_0
+  echo "using gcc : 4.4 : i586-mingw32msvc-g++
+        :
+        <rc>i586-mingw32msvc-windres
+        <archiver>i586-mingw32msvc-ar
+        <cxxflags>-frandom-seed=boost1
+  ;" > user-config.jam
+  ./bootstrap.sh --without-icu
+  ./bjam toolset=gcc target-os=windows threadapi=win32 threading=multi variant=release link=static --user-config=user-config.jam --without-mpi --without-python -sNO_BZIP2=1 -sNO_ZLIB=1 --layout=tagged --build-type=complete $MAKEOPTS stage
+  for lib in chrono date_time exception filesystem graph iostreams math_c99f math_c99l math_c99 math_tr1f math_tr1l math_tr1 prg_exec_monitor program_options random regex serialization signals system test_exec_monitor thread_win32 unit_test_framework wave wserialization; do
+      mkdir $lib
+      (cd $lib ; ar xf ../stage/lib/libboost_${lib}-mt-s.a)
+      mv $lib $TMPDIR/bin/$GBUILD_BITS
+  done
+  cp -a boost $TMPDIR/include
+  cd $TMPDIR
+  export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
+  export FAKETIME=$REFERENCE_DATETIME
+  zip -r boost-win32-1.47.0-gitian.zip *
+  cp boost-win32-1.47.0-gitian.zip $OUTDIR

contrib/wxwidgets-win32.yml

+---
+name: "wxwidgets"
+suites:
+- "lucid"
+architectures:
+- "i386"
+packages: 
+- "mingw32"
+- "faketime"
+- "zip"
+reference_datetime: "2011-01-30 00:00:00"
+remotes: []
+files:
+- "wxWidgets-2.9.2.tar.bz2"
+script: |
+  INSTDIR="$HOME/install"
+  TMPDIR="$HOME/tmpdir"
+  export LIBRARY_PATH="$INSTDIR/lib"
+  #
+  tar xjf wxWidgets-2.9.2.tar.bz2
+  cd wxWidgets-2.9.2
+  CXXFLAGS=-frandom-seed=wx1 ./configure --host=i586-mingw32msvc --build=i686-linux --prefix=$INSTDIR --disable-shared --enable-monolithic --without-libpng --disable-svg
+  perl -i -p -e "s/__TIME__/\"$REFERENCE_TIME\"/;s/__DATE__/\"$REFERENCE_DATE\"/" include/wx/chartype.h
+  make $MAKEOPTS install
+  mkdir $TMPDIR
+  cd $TMPDIR
+  cp -af $INSTDIR/include .
+  mkdir -p $TMPDIR/bin/$GBUILD_BITS
+  cd $TMPDIR/bin/$GBUILD_BITS
+  cp -af $INSTDIR/lib/wx .
+  for lib in wx_mswu; do
+      mkdir $lib
+      (cd $lib ; ar xf $INSTDIR/lib/lib${lib}-2.9-i586-mingw32msvc.a)
+  done
+  chmod -R +w $TMPDIR
+  cd $TMPDIR
+  export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
+  export FAKETIME=$REFERENCE_DATETIME
+  zip -r wxwidgets-win32-2.9.2-gitian.zip *
+  cp wxwidgets-win32-2.9.2-gitian.zip $OUTDIR

contrib/wxwidgets.yml

+---
+name: "wxwidgets"
+suites:
+- "lucid"
+architectures:
+- "i386"
+- "amd64"
+packages: 
+- "libxxf86vm-dev"
+- "libgtk2.0-dev"
+- "faketime"
+- "zip"
+reference_datetime: "2011-01-30 00:00:00"
+remotes: []
+files:
+- "wxWidgets-2.9.2.tar.bz2"
+script: |
+  INSTDIR="$HOME/install"
+  TMPDIR="$HOME/tmpdir"
+  export LIBRARY_PATH="$INSTDIR/lib"
+  #
+  tar xjf wxWidgets-2.9.2.tar.bz2
+  cd wxWidgets-2.9.2
+  ./configure --prefix=$INSTDIR --enable-monolithic --disable-shared
+  perl -i -p -e "s/__TIME__/\"$REFERENCE_TIME\"/;s/__DATE__/\"$REFERENCE_DATE\"/" include/wx/chartype.h
+  make $MAKEOPTS install
+  mkdir $TMPDIR
+  cd $TMPDIR
+  cp -af $INSTDIR/include .
+  mkdir -p $TMPDIR/bin/$GBUILD_BITS
+  cd $TMPDIR/bin/$GBUILD_BITS
+  cp -af $INSTDIR/lib/wx .
+  for lib in wxtiff wxregexu wx_gtk2u; do
+      mkdir $lib
+      (cd $lib ; ar xf $INSTDIR/lib/lib${lib}-2.9.a)
+  done
+  chmod -R +w $TMPDIR
+  cd $TMPDIR
+  export LD_PRELOAD=/usr/lib/faketime/libfaketime.so.1
+  export FAKETIME=$REFERENCE_DATETIME
+  zip -r wxWidgets-2.9.2-gitian.zip *
+  cp wxWidgets-2.9.2-gitian.zip $OUTDIR