Update HACKING, rename it to CONTRIBUTING

See #384

CONTRIBUTING.md

@@ -0,0 +1,27 @@
+Contributing
+============
+
+Style
+-----
+
+We follow the [Google Java style](https://google-styleguide.googlecode.com/svn/trunk/javaguide.html).
+To summarize it:
+
+ * Four space indentation
+ * UTF-8 source files
+ * Exactly one top-level class per file
+ * No wildcard imports
+ * One statement per line
+ * K&R spacings with braces and parenthesis
+ * Commented fallthroughs
+ * Braces are always used after if, for and while
+
+The current code base doesn't follow it entirely, but new code should follow
+it.
+
+Debugging
+---------
+
+To get all the logcat messages by F-Droid, you can run:
+
+	adb logcat | grep `adb shell ps | grep org.fdroid.fdroid | cut -c10-15`

HACKING.md

@@ -1,38 +0,0 @@
-F-Droid Client Hacking Doc
-==========================
-
-Style
------
-
-We loosely follow the [Google Java style](https://google-styleguide.googlecode.com/svn/trunk/javaguide.html).
-Some of the points we follow the most are:
-
- * Four space indentation
- * UTF-8 source files
- * Exactly one top-level class per file
- * No wildcard imports
- * One statement per line
- * K&R spacings with braces and parenthesis
-
-Some other interesting additions we might use in the future:
-
- * Commented fallthroughs
- * Braces are always used after if, for and while
-
-We don't strictly follow the entire style spec, but when in doubt you should
-follow it.
-
-Building
---------
-
-You have three options:
-
- * Build with gradle
- * Build with gradle from source
-
-Debugging
----------
-
-To get all the logcat messages by F-Droid, you can run:
-
-    adb logcat | grep `adb shell ps | grep org.fdroid.fdroid | cut -c10-15`