closes #22
removed duplicate line -- probably a merge problem
added test for I18n bug in #16
Merge branch 'master' of github.com:topfunky/calendar_helper
td[headers] matches th[id] even when using i18n - result is valid HTML

Conflicts:

	lib/calendar_helper.rb
used older spelling of test/unit matcher, because it didn't work with ruby 1.8.x
update documentation to match current other_month_class functionality
Merge pull request #24 from wwidea/master

Update to documentation
fix formatting double digit month in table id
Merge pull request #25 from wwidea/master

double digit months formatted wrong in default table_id
Use double quotes for tag attributes content

It can be important if you want to insert calendar helper output in data
attribute of your own link tag. For example `<a href="#"
data-content='#{calendar(year: 2013, month: 2)}'>Show</a>`.
Merge pull request #26 from Proghat/doublequotes

Use double quotes for tag attributes content
add ability to display week numbers
fix tr issue
Merge pull request #27 from stevschmid/master

Week numbers
adding a data-date to each cell
Merge pull request #28 from stevenbristol/master

Adding a data-date to each cell
Allows hiding of days in an another month
Merge pull request #29 from stevenbristol/master

Allows for hiding the days for the other months
Flipped the bit so it displays properly. d'oh!

The previous commit had days of other month not showing by default, breaking the existing behavior. This is proper now.