* optimize travis build

Scripts/pod-lint.sh

@@ -0,0 +1,6 @@
+#
+# pod-lint.sh
+# Created by Felix Mau (http://felix.hamburg)
+#
+
+pod lib lint

Scripts/swift-lint.sh

@@ -0,0 +1,7 @@
+#
+# swift-lint.sh
+# Created by Felix Mau (http://felix.hamburg)
+#
+
+# Run "swiftlint" and break build on any warnings
+cd Example && swiftlint --strict

Scripts/test.sh

@@ -0,0 +1,18 @@
+#
+# test.sh
+# Created by Felix Mau (http://felix.hamburg)
+#
+# Based on:
+#  - http://www.mokacoding.com/blog/running-tests-from-the-terminal/
+#  - https://github.com/supermarin/xcpretty#usage
+#  - https://www.objc.io/issues/6-build-tools/travis-ci/
+#
+
+xcodebuild \
+  -workspace Example/GradientLoadingBar.xcworkspace \
+  -scheme GradientLoadingBar-Example \
+  -enableCodeCoverage YES \
+  -sdk iphonesimulator \
+  -destination 'platform=iOS Simulator,name=iPhone X,OS=11.2' \
+  ONLY_ACTIVE_ARCH=NO \
+  test | xcpretty && exit ${PIPESTATUS[0]}