react-native-pdf

1. rewrite all iOS codes， improve scroll performance/Smoothness, fix scale/onPageChanged...
2. add onPageSigleTap(), onScaleChanged()
3. update android dependent lib AndroidPdfViewer to 3.0.0.alpha.5
4. android support link in pdf
5. delete cache file when error happened

Known issues
iOS zooming can not scroll to pinch center

1. update android dependent lib AndroidPdfViewer to 2.8.1

1. fix change page number, do not redraw problem #82

1. add code protect for not load the same pdf twice (iOS)
2. can scroll out of bounds with blank page, after stop, redraw pages (iOS)
3. cancel not finished download task when componentWillUnmount. #83

1. add .git to .npmignore

1. Fix iOS load pdf problem #76

1. Fix pdf canvas was clipped problem #69

1. improve iOS version scrolling performance
2. fix never ending loop rendering problem in example code

1. Reimplement ios version, improving scrolling
2. fix ios paging problem #63

1. improving scolling
2. return pdf local/cache path when callback onLoadComplete #57

1. update ios project to xcode9 format.
2. fix crash problem when load from base64 #58
3. fix TypeScript definition for onError #53
4. update sample code in readme

1. improve ios scrolling, fix #47

1. move react-native and react-native-fetch-blob to peerDependencies
2. upgrade android-pdf-viewer to 2.7.0

1. refactor android source
2. stop page scrolling when tap screen #41

1. fix drawing problem on Android 4.4 #31
2. add fitWidth support #36, #38

1. Remove deprecated android override for RN 0.47.0 compatibility #31

1. Improve scrolling animation iOS #25
2. When password error, call onError iOS/Android #26

1. improve scrolling animation when at pdf head/end iOS #23

1. Refactor pan gesture and fix pdf not show complete when scale on iOS #20
2. Replace PropTypes with prop-types package #22

1. comment out debug log
2. fix onLoadComplete not triggered on iOS #19
3. Fix initial props scale not work problem on iOS