Version：4.8.1
Date：2016-10-12
Update the content：
【Add】 support export egrets speed data format. Can improve the efficiency of the two to three times, save 70% of memory, a configuration file volume reduced by 50%
【Add】support for mixed mode (normal, superposition, erase)
【Add】 repository support delete, rename
【Enhancement】adjustment levels can be real-time display the results
【Enhancement】 supports the slot in the drag and drop to another slot, the contents of the merger of the two slot
【Enhancement】 drag and drop objects to scene tree, mouse stay on projects of folding, folding project will automatically open