Nil case for title handled
Check for a nil topic before loading more.

Avoids a rare crash at launch in certain situations.
Minor code style fix and removes a commented method.
done button removed
Skip fetching a new image from the cache and just copy instead.

This is a work around for an issue retriving some images from the cache.
Bumping version to 4.2.
Added sanity check when note's blog is 0

see #1915
Compute button spacing delta via intrinsicContentSize

Avoids potentially triggering recursion by inspecting a subview.
Likes_enabled and sharing_enabled into the models
Merge pull request #1931 from wordpress-mobile/issues/1926-autolayout-crash

Compute button spacing delta via intrinsicContentSize
data model update
Merge pull request #1907 from davidfilip/issue/1906-remove-done-button

Issue 1906: Remove "Done" button from friend finder
Merge pull request #1925 from wordpress-mobile/issue/1915-jetpack-login-for-private-blog

Added sanity check when note's blog is 0
logic for displaying icons based on post settings
Replying to the comment communicate status
Merge pull request #1900 from davidfilip/issue/1658-reply-from-comments-list

Issue #1658: Comments: Replying to a comment from the comment's list does not reflect success/failure
Merge pull request #1909 from wordpress-mobile/issues/1908-missing-featured-image-ipad

Skip fetching a new image from the cache and just copy instead.
condition reformated
Return out of method if topic is nil.
Merge pull request #1904 from wordpress-mobile/issues/1903-crash-nil-topic

Check for a nil topic before loading more.
Merge pull request #1898 from davidfilip/issue/1611-notification-cell-crash

Issue #1611: Notifications Cell Crashes if Title is nil