Fix issues link and some grammar in README
Merge pull request #12 from jmikola/patch-1

Fix issues link and some grammar in README
An idea development for a trie structure. HIGHLY UNSTABLE; DO NOT USE.
More fleshing out of the Trie. STILL HIGHLY UNSTABLE; DO NOT USE.
Added offsetGet. STILL HIGHLY UNSTABLE; DO NOT USE.
STILL HIGHLY UNSTABLE; DO NOT USE.
Minor cleanup with namespaces. Also added `findFirst` and `findLast`.
Some documentation updates for behavior clarification.
Minor namespace cleanup.
Simplified count implementation.
Simplified required PHP version to 5.4.
Update README.md
OO code => OO programming
Changed how the split functionality is done.
No longer provide a default for splitting the key into segments for the trie.
Improved documentation.
Simplified `count` operation for some iterators. Also linked to the countable interface.
Merge pull request #8 from morrisonlevi/master

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