Suggestion: add "isInEditMode" for the CTOR of JazzyViewPager

[AndroidDeveloperLB]

Currently, the view causes errors while showing itself via the UI designer.

I suggest using isInEditMode() command, maybe like so:

public JazzyViewPager(final Context context, final AttributeSet attrs) {
    super(context, attrs);
    setClipChildren(false);
    // now style everything!
    final TypedArray ta = context.obtainStyledAttributes(attrs, R.styleable.JazzyViewPager);
    final int effect = ta.getInt(R.styleable.JazzyViewPager_style, 0);
    if (!isInEditMode()) {
        final String[] transitions = getResources().getStringArray(R.array.jazzy_effects);
        setTransitionEffect(TransitionEffect.valueOf(transitions[effect]));
    }
    setFadeEnabled(ta.getBoolean(R.styleable.JazzyViewPager_fadeEnabled, false));
            ...