Fixed bugs related to OneShot Mode and FinderMode initialized several times without check.
Made stopOneShotMode available from header.
Header compatible with Archive Build.
Buttons in OneShot and FinderMode referenced to _scanFXLayer instead of mainViewController to account for wrong internal origin and size reference.
ScanFXLayer init accounts for navigation bar height.
Colors defined in macros.
Fixed check if delegate performs selector
Changed name of macro for server url