disabled coveralls

disabled coveralls
disabled client tls
pkeyauth changes
pkeyauth work
Merge remote-tracking branch 'origin/dev' into pkeyauth

Conflicts:
	ADALiOS/ADALiOS.xcodeproj/project.pbxproj
	ADALiOS/ADALiOS/ADAuthenticationWebViewController.m
fix for https://github.com/AzureAD/azure-activedirectory-library-for-objc/issues/104
added cert check
addressed comments
Addressed issue#106

Addressed issue# 106
(https://github.com/AzureAD/azure-activedirectory-library-for-objc/issue
s/106)
Addressed comments.

Addressed comments.
fixes
fixes
changes
disabled integration tests for daily builds
Merge pull request #124 from AzureAD/pkeyauth

Pkeyauth