Move existing source code to subfolder

uhabits-android/proguard-rules.txt

@@ -1,31 +0,0 @@
--dontobfuscate
-
--dontwarn java.**
--dontwarn javax.**
--dontwarn org.apache.commons.beanutils.*
--dontwarn org.codehaus.mojo.**
-
--dontnote com.android.**
--dontnote com.google.gson.internal.**
--dontnote dagger.*
--dontnote dalvik.system.**
--dontnote javax.inject.**
--dontnote org.apache.harmony.xnet.**
--dontnote org.isoron.**
--dontnote sun.misc.**
--dontnote sun.security.**
-
--keep class com.getpebble.** { *; }
--keep class com.github.paolorotolo.** { *; }
--keep class io.socket.** { *; }
--keep class okhttp3.** { *; }
--keep class okio.** { *; }
--keep class org.isoron.** { *; }
--keep class sun.misc.Unsafe { *; }
--keep class android.support.test.** { *; }
--keep class org.mockito.** { *; }
--keep class org.junit.** { *; }
--keep class kotlin.** { *; }
-
-
--dontskipnonpubliclibraryclassmembers