ImageLoader v0.1
fix url to key transform in method contains
ImageLoader
DiskCache fixed size (need optimize)
ImageLoader
DiskCache fixed size (need optimize)
ImageLoader
DiskCache add comments
ImageLoader
Error report to top level (to ImageLoader from Cache and LoadTask)
Solve issue with same URL in task:
if used not available URL and add his to request que it's stop load process while HTTP connection time out not finished in one from N thread in pool
refactor
Continue work
Continue work
Merge branch 'LoginAndAccountManager'

Conflicts:
	mobile/src/main/java/by/dzmitryslutskiy/vkclient/asynctasks/CreateAccountTask.java
	mobile/src/main/java/by/dzmitryslutskiy/vkclient/syncadapter/Authenticator.java
	mobile/src/main/java/by/dzmitryslutskiy/vkclient/ui/activities/MainActivity.java
	mobile/src/main/java/by/dzmitryslutskiy/vkclient/ui/activities/StartActivity.java
	mobile/src/main/java/by/dzmitryslutskiy/vkclient/utils/AccountUtils.java
	mobile/src/main/java/by/dzmitryslutskiy/vkclient/utils/VkApi.java