The wikilocal option links_space_char will be used to replace any spaces
when creating a new wiki link and page. This only affects link creation
with a visual selection.
Commands such as :VimwikiIndex and :VimwikiDiaryIndex did not previously
take a count and the doucmentation was inconsistent/incorrect for the
behavior of these commands. Fixes#543.
This fixes Markdown syntax for bold, italic, and bold_italic. With these
changes **bold** and __bold__, *italic* and _italic_, and
***bold_italic*** and ___italic_bold___ are shown correctly.
This closes#23, closes#189, closes#318, and closes#576.