Ensure gfmxr installs with cli.v2

and *then* make this repo shadow cli.v2

.travis.yml

@@ -35,10 +35,10 @@ before_script:
 - if [ ! -f node_modules/.bin/markdown-toc ] ; then
     npm install markdown-toc ;
   fi
+- go get github.com/urfave/gfmxr/...
 - mkdir -p ${GOPATH%%:*}/src/gopkg.in/urfave
 - rm -rvf ${GOPATH%%:*}/src/gopkg.in/urfave/cli.v2
 - ln -sv ${TRAVIS_BUILD_DIR} ${GOPATH%%:*}/src/gopkg.in/urfave/cli.v2
-- go get github.com/urfave/gfmxr/...
 
 script:
 - flake8 runtests cli-v1-to-v2

appveyor.yml

@@ -18,8 +18,9 @@ install:
 - set PATH=%GOPATH%\bin;C:\go\bin;%PATH%
 - go version
 - go env
-- git clone . c:\gopath\src\gopkg.in\urfave\cli.v2
 - go get github.com/urfave/gfmxr/...
+- rmdir c:\gopath\src\gopkg.in\urfave\cli.v2 /s /q
+- git clone . c:\gopath\src\gopkg.in\urfave\cli.v2
 - go get -v -t ./...
 - if not exist node_modules\.bin\markdown-toc npm install markdown-toc