edit Readme to version 1.7.9

update README to tinker version 1.7.8

1. prepare for release 1.7.7

2.  fix xposed judgment

1. [enhancement] update readme to 1.7.6

Merge branch 'dev' of https://github.com/Tencent/tinker into dev

1. [bugfix] catch increase process priority error

1. [hotfix] fix dex check error

1. change version to 1.7.2

change version to 1.7.1

[tinker] Copy pre-generated patch dex to tempPatchedDexes directory.