Merge branch 'master' into new_disk_cache_api

Author: nostra13

README.md

@@ -333,8 +333,7 @@ To provide caching on external storage (SD card) add following permission to And
  - Use `.bitmapConfig(Bitmap.Config.RGB_565)` in display options. Bitmaps in RGB_565 consume 2 times less memory than in ARGB_8888.
  - Use `.memoryCache(new WeakMemoryCache())` in configuration or disable caching in memory at all in display options (don't call `.cacheInMemory()`).
  - Use `.imageScaleType(ImageScaleType.IN_SAMPLE_INT)` in display options. Or try `.imageScaleType(ImageScaleType.EXACTLY)`.
- - Avoid using RoundedBitmapDisplayer. It creates new Bitmap object with ARGB_8888 config for displaying during work.
- 
+
 5. For memory cache configuration (`ImageLoaderConfiguration.memoryCache(...)`) you can use already prepared implementations.
  * Cache using **only strong** references:
      * `LruMemoryCache` (Least recently used bitmap is deleted when cache size limit is exceeded) - **Used by default**