Added option to multisearch that filters on names (author or editor).

[Heerkog]

Names require exact matching per name. Although a preg_match over the entire author field is possible, it's inconvenient and often results in unwanted matches if not done careful. Instead, now use 'name'=>'(M. Monperrus|Monperrus, M.)' to exact match the name of an author or editor, use 'author_name' to match the name of an author, and use 'editor_name' to match the name of an editor.

[monperrus]

looks great, would you be able to add a test case in BibtexBrowserTest?

thanks @Heerkog

[Heerkog]

Done! @monperrus

[monperrus]

thanks a lot @Heerkog