Update .gitignore

Author: Bansenauer-Cascadia

.gitignore

@@ -1,27 +1,37 @@
 # Built application files
-*.apk
-*.ap_
+/*/build/
 
-# Files for the Dalvik VM
-*.dex
+# Crashlytics configuations
+com_crashlytics_export_strings.xml
 
-# Java class files
-*.class
-
-# Generated files
-bin/
-gen/
+# Local configuration file (sdk path, etc)
+local.properties
 
-# Gradle files
+# Gradle generated files
 .gradle/
-build/
-.idea/
 
-# Local configuration file (sdk path, etc)
-local.properties
+# Signing files
+.signing/
 
-# Proguard folder generated by Eclipse
-proguard/
+# User-specific configurations
+.idea/libraries/
+.idea/workspace.xml
+.idea/tasks.xml
+.idea/.name
+.idea/compiler.xml
+.idea/copyright/profiles_settings.xml
+.idea/encodings.xml
+.idea/misc.xml
+.idea/modules.xml
+.idea/scopes/scope_settings.xml
+.idea/vcs.xml
+*.iml
 
-# Log Files
-*.log
+# OS-specific files
+.DS_Store
+.DS_Store?
+._*
+.Spotlight-V100
+.Trashes
+ehthumbs.db
+Thumbs.db