💥 Remove :feature category

:feature was a "catch-all" category. Many of its modules fit better in
other categories, so they've been moved:

- feature/debugger -> tools/debugger
- feature/evil -> editor/evil
- feature/eval -> tools/eval
- feature/lookup -> tools/lookup
- feature/snippets -> editor/snippets
- feature/file-templates -> editor/file-templates
- feature/workspaces -> ui/workspaces

More potential changes in the future:

- A new :term category for terminal emulation modules (eshell, term and
  vterm).
- A new :os category for modules dedicated to os-specific functionality.
  The :tools macos module would fit here, but so would modules for nixos
  and arch.
- A new :services category for web-service integration, like wakatime,
  twitter, elfeed, gist and pastebin services.

modules/editor/file-templates/templates/android-mode/__build.gradle

@@ -0,0 +1,49 @@
+# -*- mode: snippet -*-
+# name: build.gradle template
+# condition: (eq major-mode 'groovy-mode)
+# --
+buildscript {
+    repositories {
+        mavenCentral()
+    }
+    dependencies {
+        classpath 'com.android.tools.build:gradle:1.2.3'
+    }
+}
+
+apply plugin: 'android'
+
+android {
+    compileSdkVersion 22
+    buildToolsVersion "22.0.1"
+
+    sourceSets {
+        main {
+            manifest.srcFile 'AndroidManifest.xml'
+            java.srcDirs = ['java']
+            resources.srcDirs = ['java']
+            aidl.srcDirs = ['java']
+            renderscript.srcDirs = ['java']
+            res.srcDirs = ['res']
+            assets.srcDirs = ['assets']
+        }
+
+        // Move the tests to tests/java, tests/res, etc...
+        androidTest.setRoot('../tests')
+
+        // Move the build types to build-types/<type>
+        // For instance, build-types/debug/java, build-types/debug/AndroidManifest.xml, ...
+        // This moves them out of them default location under src/<type>/... which would
+        // conflict with src/ being used by the main source set.
+        // Adding new build types or product flavors should be accompanied
+        // by a similar customization.
+        debug.setRoot('build-types/debug')
+        release.setRoot('build-types/release')
+    }
+
+    lintOptions {
+        abortOnError false
+    }
+}
+
+$0