Merge pull request #159 from tpkelly/develop

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Accounting for tick label rotation when setting defaut text anchor.
Merge pull request #164 from tpkelly/develop

Adjust margins for titles
Setting text anchor for axis tick labels based on all possible rotations.
Fixed mistakes in margins with large tick label rotations.
Merge pull request #167 from niksoper/anchor-rotation

Accounting for tick label rotation when setting defaut text anchor.
Removed data argument from tickLabelRotationTransform and removed extra tick padding.
Removed a baffling XOR condition.
Merge pull request #168 from niksoper/develop

Removed data argument from tickLabelRotationTransform and removed extra ...
Merge branch 'upstream' into feature/point-series