Merge pull request #14 from onl1ner/feature/tab-item-selected-icon

Added a parameter for providing selected icon name

Merge pull request #8 from onl1ner/feature/optional-visibility

Made visibility property to be optional when initializing

Merge pull request #5 from onl1ner/feature/documentation

Added code documentation

Merge pull request #4 from onl1ner/feature/visibility-toggle

Added convenience function to toggle between visibility states

Merge pull request #2 from bgeisb/feature/#1-implement-visibility-pro…

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Issue #1 - Hide/Show TabBar

Fixed typo