Add travis script

Author: ice1000

.travis.yml

@@ -0,0 +1,9 @@
+sudo: required
+language: java
+language: kotlin
+jdk:
+- oraclejdk8
+script:
+- ./gradlew jar --info --warning-mode=all
+before_install:
+- chmod a+x gradlew

README.md

@@ -1,16 +1,11 @@
 # Clojure plugin for DevKt
 
+[![Build Status](https://travis-ci.org/devkt-plugins/la-clojure-devkt.svg?branch=master)](https://travis-ci.org/devkt-plugins/la-clojure-devkt)
+
 This is yet another clojure plugin for [DevKt](https://github.com/ice1000/dev-kt),
 based on [la-clojure](https://github.com/JetBrains/la-clojure).
 
 It works better than [this plugin](https://github.com/devkt-plugins/clojure-devkt).
 
 Everything related to DevKt are in [this Java file](src/org/jetbrains/plugin/devkt/clojure/Clojure.java).  
 You may use it as a reference of DevKt plugin development, if you don't know Kotlin.
-
-# Build
-
-```
-$ gradlew jar
-```
-

src/org/jetbrains/plugin/devkt/clojure/Clojure.java

@@ -44,16 +44,16 @@ public Icon getIcon() {
 			RATIO);
 
 	private static final TokenSet OPERATORS = TokenSet.create(SHARP, UP, SHARPUP, TILDA, AT, TILDAAT, QUOTE, BACKQUOTE);
-	private static final List<Object> cljsPredefined = Arrays.asList("Infinity", "-Infinity");
-	private static final List<Object> cljsTypes = Arrays.asList("default",
+	private static final List<String> cljsPredefined = Arrays.asList("Infinity", "-Infinity");
+	private static final List<String> cljsTypes = Arrays.asList("default",
 			"nil",
 			"object",
 			"boolean",
 			"number",
 			"string",
 			"array",
 			"function");
-	private static final List<Object> typeMetaAliases = Arrays.asList("int",
+	private static final List<String> typeMetaAliases = Arrays.asList("int",
 			"ints",
 			"long",
 			"longs",
@@ -71,7 +71,7 @@ public Icon getIcon() {
 			"char",
 			"chars",
 			"objects");
-	private static final List<Object> reserved = Arrays.asList("def",
+	private static final List<String> reserved = Arrays.asList("def",
 			"defn",
 			"defmethod",
 			"defn-",