Implemented exporting symbol fonts;

Rendering symbols to an image always uses anti-aliassing (by downsampling from a large size);
Finished the spoiler export template;
Added <soft-line> tag to make line breaks use the line height for soft line breaks

git-svn-id: svn://svn.code.sf.net/p/magicseteditor/code/trunk@440 0fc631ac-6414-0410-93d0-97cfa31319b6

src/render/text/font.cpp

@@ -43,7 +43,7 @@ void FontTextElement::getCharInfo(RotatedDC& dc, double scale, vector<CharInfo>&
 		} else {
 			RealSize s = dc.GetTextExtent(content.substr(line_start - this->start, i - line_start + 1));
 			out.push_back(CharInfo(RealSize(s.width - prev_width, s.height),
-			                 c == _(' ') ? BREAK_SOFT : BREAK_MAYBE
+			                 c == _(' ') ? BREAK_SPACE : BREAK_MAYBE
 			             ));
 			prev_width = s.width;
 		}