upd

added link to long read; upd bower link to target blank
upd

title «How it works?» → «How to use?»
imgsLoadedCounter to separate module
add imgsLoadedCounterModule
add imgsLength property to miracle object
add error event for image dependencies, separate imgsLoadedCounter
add img error pages
add class for image error example
refine error message on not loaded img del
upd

added description about not loaded image dependency case
upd headers hierarchy
added performance description
Merge branch 'master' of https://github.com/MaximDubrovin/miracle into dev
1.0.5