Implement Float64Flag. See #46
Added godoc for Float64
Fix typo in godoc for Float64
Merge pull request #52 from kytrinyx/float-flag-doc-typo

Fix typo in godoc for Float64
Standardize import statements
Merge pull request #53 from kytrinyx/standardize-import

Standardize import statements
Allow optional flags by asking if its been set/present on the command line
Merge pull request #57 from fraenkel/optional

Allow to detect optional flags
Unit tests for Before() functionality
Add before function to app
Subcommand example used non-existent function
Merge pull request #61 from cab/master

Subcommand example used non-existent function
Add a way to override the app help printer

Fixes #64
Merge pull request #65 from tjarratt/custom-help-printer

Add a way to override the app help printer
Fixed typo in README
Merge pull request #67 from tenpeoplemeet/patch-1

Fixed typo in README
add tests for description output
fix whitespace
rollback inconsequential changes
Merge pull request #68 from bunnymatic/checking-that-description-works

Checking that description works