Add gitignore template

src/main/kotlin/starter/KotlinStarter.kt

@@ -3,10 +3,7 @@ package starter
 import org.koin.core.context.startKoin
 import org.koin.dsl.bind
 import org.koin.dsl.module
-import starter.templates.LogbackTemplate
-import starter.templates.MainTemplate
-import starter.templates.PomTemplate
-import starter.templates.Template
+import starter.templates.*
 
 val mainModule = module {
     single { Config().load() }
@@ -20,6 +17,7 @@ val templateModule = module {
     single { PomTemplate(get()) } bind Template::class
     single { MainTemplate(get()) } bind Template::class
     single { LogbackTemplate(get()) } bind Template::class
+    single { GitignoreTemplate(get()) } bind Template::class
 }
 
 fun main() {

src/main/kotlin/starter/PebbleModule.kt

@@ -9,7 +9,7 @@ class PebbleModule {
         loader.suffix = ".twig"
         return PebbleEngine.Builder()
                 .loader(loader)
-                .cacheActive(false)
+                .cacheActive(true)
                 .build()
     }
-}
+}

src/main/kotlin/starter/templates/GitignoreTemplate.kt

@@ -0,0 +1,13 @@
+package starter.templates
+
+import com.mitchellbosecke.pebble.PebbleEngine
+import starter.Project
+import starter.utils.render
+
+class GitignoreTemplate(private val engine: PebbleEngine) : Template {
+    override fun path(project: Project) =
+            ".gitignore"
+
+    override fun render(project: Project) =
+            engine.render("starter/gitignore/index")
+}