Bug 255769 - Ignored files - Notification about integration to release81

Bug URL:
https://netbeans.org/bugzilla/show_bug.cgi?id=255769

Description:
Files with name .DS_Store are visible in Files Window, although they 
should be hidden by default.

Impact:
Mainly computers with Mac OS X, where these files are used for storing 
custom attributes of a folder.
The most significant problem is that these files may become versioned, 
although they should be
ignored by version control systems.

Risk assessment:
The changeset is quite safe, only string constants with file name 
pattern is modified.

Changeset URL:
http://hg.netbeans.org/core-main/rev/6b1f4edb9f58

Confirmation of peer code review:
Reviewed.
https://netbeans.org/bugzilla/show_bug.cgi?id=255769#c4

Verification status:
Verified.
https://netbeans.org/bugzilla/show_bug.cgi?id=255769#c5

Thank you.