HRI-215: All certificates/keys are moved to App_Data folder. The code was refactored to operate with relative paths.
Removed log files. idp.log is now in App_Data\Logs.
idp.log is now in App_Data\Logs.
Merge remote-tracking branch 'upstream/7.1.4' into 7.1.4

Conflicts:
	HRI/HRI.Umbraco.csproj
Merge pull request #52 from sergey128/7.1.4

HR-215: external files (keys/certificates) are now in App_Data and resolved as relative paths