Update

ftplugin/tex_LatexBox.vim

@@ -0,0 +1,37 @@
+if !exists('g:polyglot_disabled') || index(g:polyglot_disabled, 'latex') == -1
+  
+" LaTeX Box plugin for Vim
+" Maintainer: David Munger
+" Email: mungerd@gmail.com
+" Version: 0.9.6
+
+if exists('*fnameescape')
+	function! s:FNameEscape(s)
+		return fnameescape(a:s)
+	endfunction
+else
+	function! s:FNameEscape(s)
+		return a:s
+	endfunction
+endif
+
+if !exists('b:LatexBox_loaded')
+
+	let prefix = expand('<sfile>:p:h') . '/latex-box/'
+
+	execute 'source ' . s:FNameEscape(prefix . 'common.vim')
+	execute 'source ' . s:FNameEscape(prefix . 'complete.vim')
+	execute 'source ' . s:FNameEscape(prefix . 'motion.vim')
+	execute 'source ' . s:FNameEscape(prefix . 'latexmk.vim')
+	execute 'source ' . s:FNameEscape(prefix . 'folding.vim')
+	" added by AH to add main.tex file finder
+	execute 'source ' . s:FNameEscape(prefix . 'findmain.vim')
+	execute 'source ' . s:FNameEscape(prefix . 'mappings.vim')
+
+	let b:LatexBox_loaded = 1
+
+endif
+
+" vim:fdm=marker:ff=unix:noet:ts=4:sw=4
+
+endif