Added OSX CI

Author: budziq

.travis.yml

@@ -1,5 +1,13 @@
 language: rust
 
+rust:
+  - stable
+  - nightly
+
+os:
+  - linux
+  - osx
+
 env:
   global:
   - secure: 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

deploy.sh

@@ -7,8 +7,10 @@ if [ -z "${TRAVIS_BRANCH:-}" ]; then
     exit 1
 fi
 
-if [ "$TRAVIS_BRANCH" != "master" ]; then
-    echo "This commit was made against '$TRAVIS_BRANCH' and not master! No deploy!"
+if [[ "$TRAVIS_BRANCH" != "master" || "$TRAVIS_RUST_VERSION" != "stable" || "$TRAVIS_OS_NAME" != "linux" ]]; then
+    echo "This commit was made against '$TRAVIS_BRANCH' with '$TRAVIS_RUST_VERSION' on '$TRAVIS_OS_NAME'."
+    echo "Instead of 'master' branch with 'stable' on 'linux'!"
+    echo "Not deploying!"
     exit 0
 fi