[master] bump version of embedded git for windows

Makefile

@@ -594,7 +594,8 @@ ifneq (,$(filter $(ARCH), i386 i486 i586 i686))
  7z x -y 7z920.exe 7z.exe 7z.dll && \
  ../contrib/windows/winrpm.sh http:https://download.opensuse.org/repositories/windows:/mingw:/win32/openSUSE_13.1 \
  "mingw32-libgfortran3 mingw32-libquadmath0 mingw32-libstdc++6 mingw32-libgcc_s_sjlj1 mingw32-libssp0 mingw32-libexpat1 mingw32-zlib1" && \
- cp usr/i686-w64-mingw32/sys-root/mingw/bin/*.dll .
+ cp usr/i686-w64-mingw32/sys-root/mingw/bin/*.dll . && \
+ $(JLDOWNLOAD) PortableGit.7z https://github.com/git-for-windows/git/releases/download/v2.6.1.windows.1/PortableGit-2.6.1-32-bit.7z.exe
 else ifeq ($(ARCH),x86_64)
  cd $(JULIAHOME)/dist-extras && \
  $(JLDOWNLOAD) 7z920-x64.msi http:https://downloads.sourceforge.net/sevenzip/7z920-x64.msi && \
@@ -603,7 +604,8 @@ else ifeq ($(ARCH),x86_64)
  mv _7z.exe 7z.exe && \
  ../contrib/windows/winrpm.sh http:https://download.opensuse.org/repositories/windows:/mingw:/win64/openSUSE_13.1 \
  "mingw64-libgfortran3 mingw64-libquadmath0 mingw64-libstdc++6 mingw64-libgcc_s_seh1 mingw64-libssp0 mingw64-libexpat1 mingw64-zlib1" && \
- cp usr/x86_64-w64-mingw32/sys-root/mingw/bin/*.dll .
+ cp usr/x86_64-w64-mingw32/sys-root/mingw/bin/*.dll . && \
+ $(JLDOWNLOAD) PortableGit.7z https://github.com/git-for-windows/git/releases/download/v2.6.1.windows.1/PortableGit-2.6.1-64-bit.7z.exe
 else
  $(error no win-extras target for ARCH=$(ARCH))
 endif
@@ -615,5 +617,4 @@ endif
  chmod a+x 7z.dll && \
  $(call spawn,./7z.exe) x -y -onsis nsis-2.46.5-Unicode-setup.exe && \
  chmod a+x ./nsis/makensis.exe && \
- chmod a+x busybox.exe && \
- $(JLDOWNLOAD) PortableGit.7z https://github.com/msysgit/msysgit/releases/download/Git-1.9.5-preview20141217/PortableGit-1.9.5-preview20141217.7z
+ chmod a+x busybox.exe