Merge pull request JuliaHealth#28 from notZaki/unspecifiedLength

Update deprected syntax of unspecified_length()

Add badges for build/codecov; Mention existence of tag macro

Merge pull request JuliaHealth#26 from notZaki/updateForJulia0.7

Update for Julia 0.7/1.0

Update Travis to use Julia 0.6

Replace tempname() with mktempdir() in runtests (JuliaHealth#21)

DICOM v0.0.1 [0fd8507]