Utilizing exception mechanism instead of explicitly checking the variable name.
Removing vestigial code from for countable objects
Typo fixes, link updates
Fixed Encoding::UndefinedConversionError when saving new workbook
Merge pull request #132 from Fs02/master

Fixed Encoding::UndefinedConversionError when writing new workbook
Minor code cleanup
Generalizing the object comparison
Merge branch 'master' of github.com:weshatheleopard/rubyXL
Version bump to 3.2.1
Regenerate gemspec for version 3.2.1
Merge branch 'master' into profiling