#496 Small improvements for HTML-to-plaintext conversion

[Alexey Shpakovsky]

Attached patch improves the way how formatBody function cleans up HTML. If user prefers not to show HTML by default, but email message doesn't have a plaintext version, SquirrelMail simply strips out all HTML tags from message and presents the result. This patch adds few changes to this:

• <style> tags removed together with their contents
• newlines in HTML source are replaced with spaces
• sequences of spaces are squashed together
• sequenses of empty lines are squashed together to max one empty line

Attached images show an HTML message before and after applying this patch.

[Paul Lesniewski]

This is great work - thank you. Sorry that notification didn't go out to the team for this or it would have been added earlier. Nice work.