0.4.2

Fix constructing Collection from Generator.

Fix constructor

0.4.1

Fix constructor

Add slice() and flatten() methods

0.4

Fix constructing from an associative array; add slice and flatten met…

Fix creating Collection from associative array

0.3.2

Fix creating Collection from associative array

Fix first() on empty Collection

0.3.1

Fix first() on empty Collection

Add add() method

0.3.0

Add add() method

0.2

first() method added

First release

0.1

init