Fixed Xcode 9 warnings Swiftlint 0.23

[AntonPalich]

Fixes #368

[codecov-io]

Codecov Report

Merging #371 into master will increase coverage by 0.17%.
The diff coverage is 66.66%.

@@            Coverage Diff             @@
##           master     #371      +/-   ##
==========================================
+ Coverage    63.9%   64.07%   +0.17%     
==========================================
  Files          63       63              
  Lines        3574     3577       +3     
==========================================
+ Hits         2284     2292       +8     
+ Misses       1290     1285       -5

Impacted Files	Coverage Δ
.../Chat Items/BaseMessage/BaseMessagePresenter.swift	60.91% <ø> (ø)	⬆️
...dditions/Source/Input/Text/TextChatInputItem.swift	100% <ø> (ø)	⬆️
...ws/BaseMessageCollectionViewCellDefaultStyle.swift	86.15% <ø> (ø)	⬆️
...eMessage/Views/BaseMessageCollectionViewCell.swift	52.07% <ø> (ø)	⬆️
.../Source/Input/Photos/PhotosInputCameraPicker.swift	0% <0%> (ø)	⬆️
ChattoAdditions/Source/Input/ReusableXibView.swift	12.5% <0%> (ø)	⬆️
...ChatController/Collaborators/KeyboardTracker.swift	57.65% <0%> (ø)	⬆️
.../Source/Input/Photos/PhotosInputCellProvider.swift	0% <0%> (ø)	⬆️
...Additions/Source/Input/ChatInputBarPresenter.swift	66.66% <100%> (-0.43%)	⬇️
...hatController/BaseChatViewController+Changes.swift	88.75% <100%> (+0.88%)	⬆️
... and 3 more

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