Fix the pypylon 1.3.0 release process

- Remove appveyor branch check as it doesn't work with annotated tags
- Add travis_retry to stabilize the pylon download

.appveyor.yml

@@ -63,5 +63,5 @@ deploy:
 
 deploy_script:
   - echo "Starting Artifact Deployment"
-  - ps: If ($env:APPVEYOR_REPO_TAG -eq "true" -And $env:APPVEYOR_REPO_BRANCH -eq "master") { Invoke-Expression "$env:PYTHON\\Scripts\\twine upload --skip-existing dist/*" 2>$null } Else { write-output "Not on a tag on master, won't deploy to pypi"}
+  - ps: If ($env:APPVEYOR_REPO_TAG -eq "true") { Invoke-Expression "$env:PYTHON\\Scripts\\twine upload --skip-existing dist/*" 2>$null } Else { write-output "Not on a tag, won't deploy to pypi"}
   - echo "Finished Artifact Deployment"

.travis.yml

@@ -26,7 +26,7 @@ install:
 - mkdir pylon_installer && cd pylon_installer
 - |
   for PYLON_ARCH in armhf arm64 x86 x86_64 ; do
-      curl -O "${PYLON_DOWNLOAD_URL_BASE}pylon-5.0.12.11829-${PYLON_ARCH}.tar.gz"
+      travis_retry curl -sSfL -O "${PYLON_DOWNLOAD_URL_BASE}pylon-5.0.12.11829-${PYLON_ARCH}.tar.gz"
   done
 - echo "Pylon Installer:" && ls