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version 1.3.0, 2015-01-31
- conv_unit():	added unit options: angstrom and au (length), light and mach (speed), ul (volume)
- conv_unit():	added “lbs” as a synonym for “lb” (mass)
- conv_unit():	increased efficiency and speed of coordinate unit conversions
- Q10calc():	new function
- range_seq():	new function
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version 1.2, 2014-11-07
- conv_unit():	added dimensions: angle, coordinate
- conv_unit():	added unit options: hectare (area), R (temperature), dm3 and dl (volume)
- geom_mean():	new function
- minor modifications to conv_unit help page

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version 1.1, 2014-08-29
- conv_unit():	added dimensions: acceleration, energy, flow, power, and temperature

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version 1.0, 2014-06-25
- conv_unit():	new function
- se():		new function
