Merge pull request #83 from marty-suzuki/swift5

Support Swift5

fix #73

Merge pull request #76 from marty-suzuki/swift-4.2

Swift 4.2

Merge pull request #71 from marty-suzuki/fix-parse

Fix parse

update podspec

fix files

Merge pull request #67 from marty-suzuki/fix-og-parse

fix og parse #60

modifications for swift4.0

Merge pull request #59 from marty-suzuki/fix-for-objc

add @objc aattribute #58

Merge pull request #57 from marty-suzuki/swift4_1

support swift4.1 #56