optimize user experence
Add Google Route
Test read exif info when uploading
add UploadImage Feature
refine uploadImage Feature
keep distance with its parent marker when zooming
fix bug when loading routines
Delete image file in avos cloud when deleting one Marker
Query if want delete image in server when delete one marker
Code Refactor and refine
Add Merge Url Feature
Add slideNum Property in mapcontent
SlideMode Feature
SlideMode Feature

Add animation to Slide Mode
refine ui presentation
Merge pull request #6 from zjc1985/PictureUpload&MarkerCluster

Picture upload&marker cluster