Don't return error if no task files are found
Merge branch 'allow_empty_tasks'
Add section on multiple tasks
Use Go 1.2
Add go test -cover
Use go get -t to get test dependency
Filter --debug on run
Move build API to build.go
Fix go vet warning
Fix README typo
Be accurate on gotask build tag when loading task files
Merge branch 'ignore_task'
Add support for flags of type string. Should fix jingweno/gotask#10