Apkid

Lots of good changes here. Many thanks to people who contributed rules and put up with my review process -- enovella, P0r0, zeroload, ulexec.


- Rewrite core code -- cleaner API, Python 3.6+ compatible, type hints
- New rules -- Arxan GuardIT, SecNeo, SecEnh, AppSealing, AliPay, GaoXor, Kiwi, Gemalto
- Updated yara-python dependency to 3.10.0 (removed dependency on our custom fork!)
- General rule cleanup and refactoring
- 14.7% more cool
- Readme now includes a screenshot because the marketing department demanded one

This release has a lot of changes both in the code and in the rules.

Thanks to enovella who has really stepped up and added a lot of rules, and thanks to everyone else in the community who's contributed!

Core Changes
- Update to yara-python 3.7.0.999 (with the new official DEX module)
- Added TravisCI integration & some tests for rules
- Rules need to compile or the test will fail
- Warnings are given if rules don't have tags, description, or a sample
- Add colorized output

<img width="836" alt="screen shot 2018-07-14 at 7 46 57 am" src="https://user-images.githubusercontent.com/1356658/42726478-01155894-874a-11e8-91c2-ca32981bb0f3.png">

New native obfuscators
- Obfuscator-LLVM
- v3.4
- v3.5
- v3.6.1
- v4.0
- v6.0 (unofficial fork)
- v6.0 with string encryption (unofficial fork)
- version-less
- Firehash
- AVDobfuscator

New DEX obfuscators
- Allatori demo
- Arxan
- Multidex support
- DexProtector (bugfixes)
- AMMO (thanks P0r0!)

New native packers
- Promon Shield
- UPX
- v3.93
- v3.94
- Bangcle SecShell (secneo-like)
- AppGuard (secneo-like)

New DEX packers
- ApkPacker (Custom packer)
- CryptoShell
- ApkGuard
- DexProtector (more versions)
- Jiagu (ApkToolPlus)
- Custom Chinese "ChornClickers" (**Ch**-ina P**ornClickers**)

Changes:
- Add `--output-dir` option which writes individual JSON to a target directory
- Add rules for Jack compiler (https://calebfenton.github.io/2016/12/01/building-with-and-detecting-jack/)
- Add rules for anti-vm detection
- Add rules for SecNeo and DxShield (thanks circleous!)
- Improve accuracy and specificity for dex compiler fingerprints
- Update dex module & yara dependency to 3.5.0

Changes:
- Fixed segfaults for badly formed DEX files (thanks cryptax!)
- Added PangXie packer rules (thanks cryptax!)
- Added DexProtector obfuscator rules (thanks Jasi2169!)
- Updated Yara from 3.4.0 to 3.5.0 (thanks ME!)
- Fixed some typos, cleaned up code, the usual