Vendor GYP and libuv into the repo.

Instead of dynamically downloading these as needed during a build, this
checks in those two dependencies directly into the Wren repo. That's a
little lame because users of Wren who aren't building the CLI don't
actually need them, but they aren't too big, so it's not a huge deal.

It makes builds (particularly on Travis) more reliable, because they
don't have to pull down additional content over the network.

deps/libuv/libuv.nsi

@@ -0,0 +1,86 @@
+; NSIS installer script for libuv
+
+!include "MUI2.nsh"
+
+Name "libuv"
+OutFile "libuv-${ARCH}-${VERSION}.exe"
+
+!include "x64.nsh"
+# Default install location, for 32-bit files
+InstallDir "$PROGRAMFILES\libuv"
+
+# Override install and registry locations if this is a 64-bit install.
+function .onInit
+	${If} ${ARCH} == "x64"
+		SetRegView 64
+		StrCpy $INSTDIR "$PROGRAMFILES64\libuv"
+	${EndIf}
+functionEnd
+
+;--------------------------------
+; Installer pages
+!insertmacro MUI_PAGE_WELCOME
+!insertmacro MUI_PAGE_DIRECTORY
+!insertmacro MUI_PAGE_INSTFILES
+!insertmacro MUI_PAGE_FINISH
+
+
+;--------------------------------
+; Uninstaller pages
+!insertmacro MUI_UNPAGE_WELCOME
+!insertmacro MUI_UNPAGE_CONFIRM
+!insertmacro MUI_UNPAGE_INSTFILES
+!insertmacro MUI_UNPAGE_FINISH
+
+;--------------------------------
+; Languages
+!insertmacro MUI_LANGUAGE "English"
+
+;--------------------------------
+; Installer sections
+
+Section "Files" SecInstall
+	SectionIn RO
+	SetOutPath "$INSTDIR"
+	File "Release\*.dll"
+	File "Release\*.lib"
+	File "LICENSE"
+	File "README.md"
+
+	SetOutPath "$INSTDIR\include"
+	File "include\uv.h"
+	File "include\uv-errno.h"
+	File "include\uv-threadpool.h"
+	File "include\uv-version.h"
+	File "include\uv-win.h"
+	File "include\tree.h"
+
+	WriteUninstaller "$INSTDIR\Uninstall.exe"
+	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "DisplayName" "libuv-${ARCH}-${VERSION}"
+	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "UninstallString" "$\"$INSTDIR\Uninstall.exe$\""
+	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "QuietUninstallString" "$\"$INSTDIR\Uninstall.exe$\" /S"
+	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "HelpLink" "http://libuv.org/"
+	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "URLInfoAbout" "http://libuv.org/"
+	WriteRegStr HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "DisplayVersion" "${VERSION}"
+	WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "NoModify" "1"
+	WriteRegDWORD HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}" "NoRepair" "1"
+SectionEnd
+
+Section "Uninstall"
+	Delete "$INSTDIR\libuv.dll"
+	Delete "$INSTDIR\libuv.lib"
+	Delete "$INSTDIR\LICENSE"
+	Delete "$INSTDIR\README.md"
+
+	Delete "$INSTDIR\include\uv.h"
+	Delete "$INSTDIR\include\uv-errno.h"
+	Delete "$INSTDIR\include\uv-threadpool.h"
+	Delete "$INSTDIR\include\uv-version.h"
+	Delete "$INSTDIR\include\uv-win.h"
+	Delete "$INSTDIR\include\tree.h"
+
+	Delete "$INSTDIR\Uninstall.exe"
+	RMDir "$INSTDIR"
+	DeleteRegKey HKLM "Software\Microsoft\Windows\CurrentVersion\Uninstall\libuv-${ARCH}-${VERSION}"
+SectionEnd
+