Add initial travis config

Author: NoraCodes

.travis.yml

@@ -0,0 +1,22 @@
+language: rust
+rust:
+    - stable
+    - beta
+    - nightly
+matrix:
+    allow_failures:
+        - rust: nightly
+
+before_install: 
+    - sudo apt-get -qq update
+    - sudo apt-get install -y cmake
+    - sudo apt-get install -y libgtk-3-dev
+
+script:
+    - cd ui-sys
+    - cargo build --verbose --tests --examples
+    - cargo test
+    - cd ../ui
+    - cargo build --verbose --tests --examples
+    - cargo test
+