* Update Travis CI to use latest Go releases
* Fix go vet issues for Go 1.10
Starting in Go 1.10, the `go test` command now automatically runs `go
vet`. This commit fixes two issues flagged by vet that cause `go test`
to fail.
* Fix gofmt issue for Go 1.10
Go 1.10 introduced a small formatting change with comments in empty
multiline slice definitions. This commit attempts to move the offending
comment in such a way that all version of gofmt will agree on its
location.
* Remove go-vet from test.sh
Starting in Go 1.10, the `go test` command automatically runs `go vet`,
so we don't need to run `go vet` explicitly from within test.sh.
Fixes#222
* Added error output to test_program.go
* Added multi-line literal string support to lexer
* Added multi-line string supprt to lexer
* Added unit-test for new string support
* Modified test.sh to take an optional parameter to run an individual BurntSushi test suite.
* Fixed formatting
TomlDocument provides an optional TOML processing path where position
informaiton is stored alongside a TomlTree.
* Added Position struct
* Revised TomlTree to contain position data
* Added tomlValue to bind positions to values
* Revised parser to emit position data
* Revised token to use new Position struct
* Added tests for new functionality
* Bugfixed table array duplicate key handling
* Applied gofmt to all code
Yang Luo