Adding sort method

callbacks should be called with immutable parameters

fix onFirstSelect bug and it should not be triggered with empty strin…

…g as a currentSelectedTabId.

Adding lazy property into tabData object and provide an example for l…

…azy loading

onFirstSelect callback should have a default value + use react-dom v1…

…6.9 as a devDependency for async test with act()

adding onFirstSelect event

panelComponent property of tabData object can be null

passing handlers with same reference to instance.on method can preven…

…t of attaching an event handler multiple times.

remove reactstrap from devDependencies

correct style + adding some themes and correct description of setTab …

…method in readme