Merge pull request #290 from suzuki-0000/refactor2

pull request conflict fix

refactor

Merge pull request #277 from suzuki-0000/refactor

Refactor

Merge pull request #246 from CityOfVirginiaBeach/Swift-4

Updated to Swift 4 and made Swift Lint recommended changes

update for 4.1.1

update for 4.1.0

Merge pull request #192 from suzuki-0000/feature/401

Feature/401

merge from swift3 branch. Readme and changelog updated.

Merge pull request #165 from ileodo/current-index-api

add getCurrentPageIndex() in SKPhotoBrowser

merge for pull request. update podspec.