Add IDEA compatiblity

.gitignore

@@ -121,6 +121,53 @@ local.properties
 # Code Recommenders
 .recommenders/
 
+####
+## JetBrains: https://github.com/github/gitignore/blob/master/Global/JetBrains.gitignore
+####
+
+# Covers JetBrains IDEs: IntelliJ, RubyMine, PhpStorm, AppCode, PyCharm, CLion, Android Studio and Webstorm
+# Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
+
+# User-specific stuff:
+.idea/workspace.xml
+.idea/tasks.xml
+
+# Sensitive or high-churn files:
+.idea/dataSources/
+.idea/dataSources.ids
+.idea/dataSources.xml
+.idea/dataSources.local.xml
+.idea/sqlDataSources.xml
+.idea/dynamic.xml
+.idea/uiDesigner.xml
+
+# Gradle:
+.idea/gradle.xml
+.idea/libraries
+
+# Mongo Explorer plugin:
+.idea/mongoSettings.xml
+
+## File-based project format:
+*.iws
+
+## Plugin-specific files:
+
+# IntelliJ
+/out/
+
+# mpeltonen/sbt-idea plugin
+.idea_modules/
+
+# JIRA plugin
+atlassian-ide-plugin.xml
+
+# Crashlytics plugin (for Android Studio and IntelliJ)
+com_crashlytics_export_strings.xml
+crashlytics.properties
+crashlytics-build.properties
+fabric.properties
+
 ####
 ## CS246
 ####

build.gradle

@@ -1,5 +1,6 @@
 apply plugin: "application"
 apply plugin: "eclipse"
+apply plugin: "idea"
 apply plugin: "java"
 
 sourceCompatibility = 1.8