Remove the danda rule and add a test

This commit completes the fix of this downstream bug:
https://bugzilla.wikimedia.org/show_bug.cgi?id=51285
Add LRM and RLM to Hebrew keyboards according to SI 1452
Clarify the comment a bit
Whitespace
Merge pull request #211 from amire80/bug-51285

Remove the danda rule and add a test
Merge pull request #213 from amire80/clarify-comment

Clarify the comment a bit
Merge pull request #212 from amire80/hebrew-rlm

Add LRM and RLM to Hebrew keyboards according to SI 1452
Merge remote-tracking branch 'upstream/master'
Removed trailing whitespaces