Get linescount in a more conventional way

This should solve issue #5 see
https://github.com/dbeniamine/todo.txt-vim/issues/5

autoload/todo.vim

@@ -188,11 +188,12 @@ function! todo#HierarchicalSort(symbol, symbolsub, dolastsort)
     let l:sortmodefinal=Todo_txt_InsertSpaceIfNeeded(g:Todo_txt_third_level_sort_mode)
 
     " Count the number of lines
-    let l:position= todo#GetCurpos()
-    execute "silent normal g\<c-g>"
+    let l:position= todo#GetCurpos()
+    execute "silent normal G"
     let l:linecount=getpos(".")[1]
     if(exists("g:Todo_txt_debug"))
         echo "Linescount: ".l:linecount
+    endif
     execute "silent normal gg"
 
     " Get all the groups names
@@ -205,6 +206,9 @@ function! todo#HierarchicalSort(symbol, symbolsub, dolastsort)
     " Sort by groups
     execute 'sort'.l:sortmode.' /.\{-}\ze'.a:symbol.'/'
     for l:g in l:groups
+        let l:pat=a:symbol.l:g.'.*$'
+        if(exists("g:Todo_txt_debug"))
+            echo l:pat
         endif
         normal gg
         " Find the beginning of the group