Merge from 1.0.15

[rpaschoal]

I'll leave this pull request open while me and @rmussabayev are working on the changes for release 1.0.15.

The next release will include the following:

Committed:

• OnMessagesSeen event
• Setting to hide the search input on the friends list
• Open a chat window from an event outside of the friends list

We will also investigate the following features and we might implement these for 1.0.15. If they introduce breaking changes, we'll postpone it for a future release:

• Action to load older messages
• Upload files from a chat window

[codecov[bot]]

Codecov Report

Merging #68 into master will increase coverage by 1.65%. The diff coverage is 100%.

@@            Coverage Diff             @@
##           master      #68      +/-   ##
==========================================
+ Coverage      75%   76.65%   +1.65%     
==========================================
  Files          10       10              
  Lines         404      424      +20     
  Branches       78       81       +3     
==========================================
+ Hits          303      325      +22     
+ Misses         71       68       -3     
- Partials       30       31       +1

Impacted Files	Coverage Δ
src/ng-chat/ng-chat.component.ts	72.86% <100%> (+2.41%)	:arrow_up:

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