Revert "Remove no need white space"

This reverts commit dc918075ac32a616c5f5b8716de64dac12b94214.
Revert "support change hackfoldr"

This reverts commit 65cac2c13f4220086475ff4c806ec3a33dea4c43.

Conflicts:
	hackfoldr-iOS.xcodeproj/project.pbxproj
	hackfoldr-iOS/HackfoldrClient.h
	hackfoldr-iOS/HackfoldrClient.m
	hackfoldr-iOS/ViewController.m