add git to ubuntu-setup.sh and Dockerfile,add corkscrew

Dockerfile

@@ -9,6 +9,7 @@ RUN dpkg-reconfigure locales
 
 RUN apt-get update && apt-get install -y \
         sudo \
+        git \
         asciidoc \
         automake \
         bison \

packages/corkscrew/build.sh

@@ -0,0 +1,5 @@
+TERMUX_PKG_HOMEPAGE=http://www.agroman.net/corkscrew/
+TERMUX_PKG_DESCRIPTION="A tool for tunneling SSH through HTTP proxies"
+TERMUX_PKG_DEPENDS="openssh"
+TERMUX_PKG_VERSION=2.0
+TERMUX_PKG_SRCURL=http://agroman.net/corkscrew/corkscrew-${TERMUX_PKG_VERSION}.tar.gz

ubuntu-setup.sh

@@ -22,6 +22,7 @@ PACKAGES="$PACKAGES scons"
 PACKAGES="$PACKAGES texinfo"
 PACKAGES="$PACKAGES xmlto"
 PACKAGES="$PACKAGES xutils-dev"			# Provides u'makedepend' which the openssl build uses
+PACKAGES="$PACKAGES git"
 sudo apt install $PACKAGES
 
 sudo mkdir -p /data/data/com.termux/files/usr