add separate properties (login-options) to specify modal-vs-nonmodal presentation of email and sign-up forms; make button action methods consistent in email/sign-up forms; remove cancel button as appropriate when forms are presented modally
add docs in main header block-comment re: 'login-option' properties
fix nav-bar show/hide depending on type of nav-stack; add #defines for conditional compilation of demo app
fix to custom-xib actions wireup
further refactor of login-delegates to distinct delegate for each login-type; push email-login view setup code down into its controller; push email-login options into delegate; remove confusing #define'd example; add view-controller as first param to main delegate callback methods; various code and comment cleanup; update main documentation header per above changes
minor fixup to main header doc (per facebook usage)
Merge branch 'dk-refactorAndOtherOptions' into JL_FBPermissions

Conflicts:
	RZLogin/MyCustomLoginViewController.xib