Improve BR/DIV linebreak handling.

Don't try to terminate a line if we haven't started one yet.  LaTeX doesn't
like that.

Change-Id: I064512165b93a37b5f33834b5cc3016314ec91b7
Suppress 'toplink' on hewiki.

For example: https://he.wikipedia.org/wiki/הפארק הלאומי יוסמיטי

Change-Id: Ie20b058e843bfc76b79c5ffc1c811807647d665a