Fix Go1.4 backward compatibility

go-ini#44 add load option to ignore continuation lines

Go1.4 compatibility

go-ini#46 Bump version

go-ini#45 Must... methods assign default value when void

update travis script

go-ini#55 add test case

go-ini#52 bump version and docs

Bump version

go-ini#33 create default section for nonexistent files in loose mode