Install sftp for curl to try to upload files that way

Author: oliemansm

.travis.yml

@@ -15,7 +15,7 @@ install:
  - sudo apt-get source curl
  - sudo apt-get build-dep curl
  - cd curl-*
- - sed -i 's/CONFIGURE_ARGS += --without-libssh2/CONFIGURE_ARGS += --with-libssh2/g' debian/rules
+ - sudo sed -i 's/CONFIGURE_ARGS += --without-libssh2/CONFIGURE_ARGS += --with-libssh2/g' debian/rules
 # - wget https://bugs.launchpad.net/ubuntu/+source/curl/+bug/311029/+attachment/5234644/+files/ubuntu_libssl.patch
 # - sudo patch debian/rules < /ubuntu_libssl.patch
  - sudo dpkg-buildpackage -uc -us -b