adds a test derived from a simple excel file with blank rows
attempt to correct things at a gap in the parse sequence
a little bit tighter regexp for catching rownums
Merge pull request #11 from crowdlab-uk/fix-datetime-casting

Preserve seconds when casting datetimes
Merge pull request #10 from lcdhoffman/master

Skip over gaps in rows sequence when parsing the row set
Improve empty row handling

Previously, empty rows would be ommitted.

This adds an empty row of the correct size.

Also, refactors to something that should be a speed improvement,
although it doesn't seem to be actually. Should be easier to improve
speed though, since we now only do one call to nokogiri, which at least
reduces the things we want to check.
Remove binding.pry in test
Speed up parsing by ~25%

By removing namespaces; who knew?
Speed up parsing by another ~40%

By avoiding 'at_xpath' on the Nokogiri spreadsheet cells. Wasn't this
supposed to be a fast operation?
Add a note about performance to README
Release version 1.0.0.pre

* Handle files with blank rows [Brian Hoffman]
* Preserve seconds when casting datetimes [Rob Newbould]
* Preserve empty rows (previously would be ommitted)
* Speed up parsing by ~55%
Add support for the 1904 date system

See http://msdn.microsoft.com/en-us/library/ff530155(v=office.12).aspx
Update version to 1.0.0 from pre

The project hasn't seen a bug fix request in months, and the API is
stable, so releasing 1.0.0
Merge pull request #14 from zilverline/support-dates-counting-from-1904

Add support for the 1904 date system
Update to version 1.0.1

* Add support for the 1904 date system [zilverline]
String.codepoints returns an Enumerator in Ruby 1.9 if called without block
Merge pull request #15 from middagj/fix_codepoints

String.codepoints returns an Enumerator in Ruby 1.9 if called without block
newer rubies don’t have local directory on $:
use require_relative instead
adds support for xlsx files that do not always have a numFmtId attribute
some xlsx files use sharedstrings.xml instead of sharedStrings.xml