Add some plugin configurations

_vimrc

@@ -59,10 +59,19 @@ endif
 
 set rtp+=$HOME/vimfiles
 
+
+" execute pathogen#infect()
 packloadall
 
 let g:load_doxygen_syntax=1
 
+" Okular as vimtex' pdf viewer
+let g:vimtex_view_general_viewer = 'okular'
+let g:vimtex_view_general_options = '--unique file:@pdf\#src:@line@tex'
+let g:vimtex_view_general_options_latexmk = '--unique'
+
+let g:vimtex_compiler_method = 'arara'
+
 colorscheme atomified
 
 set langmenu=en_US