Solved a minor issue with layer.temperature calcuation.
Added ability to use index on ts.thermo.depth and incremented version.
Merge pull request #30 from lawinslow/master

Solved a minor issue with layer.temperature calcuation.
Added check for duplicate depths in thermo.depth
Fixed issue #36
Added functionality in feature request #35
Fixed issue #38
Merge pull request #40 from lawinslow/master

Fixed a bunch of feature requests and bugs
Fixed #33 with datetime column dropping from get.offsets
Roxygenized meta.depths documentation and addressed part of #21
Fix #21 by adding links to ts functions.
Merge pull request #41 from lawinslow/master

Addressing a few more issues.
updated ts.schmidt.stability to handle NA's better

Skipping over rows in which there are NA's for all water temperature depths; running schmidt.stability() on rows with all NA's throws an error.
fixed missing parentheses
Merge pull request #43 from jzwart/patch-4

updated ts.schmidt.stability to handle NA's better
merge resolve