iOS. Add --keep-keychains option and desired capability keepKeyChains
Fix Cannot call method 'getAllLogs' of undefined
Merge pull request #1982 from bootstraponline/master

Fix Cannot call method 'getAllLogs' of undefined
Increase maxBuffer for installApp command
Merge pull request #1983 from egoldblum/master

Increase maxBuffer for installApp command
Merge pull request #1973 from pavelsmolensky/keepKeyChains

Add option --keep-keychains to save Library/Keychains between appium session restarts
Merge pull request #1976 from sebv/uiauto-npm

Extracted appium-uiauto package
extracted appium-adb and appium-uiautomator packages