vim: use ale instead of syntastic

Async here is great.

home/.vim/vimrc

@@ -202,20 +202,26 @@ let mapleader = ","
 
   " }}}
 
+  " apt-get install shellcheck for shell linting
+  " apt-get install perl-critic for perl
   " syntax checking {{{
-    " apt-get install shellcheck for shell linting
-    Plugin 'vim-syntastic/syntastic'
+    Plugin 'dense-analysis/ale'
 
-    let g:syntastic_check_on_open = 1
-    let g:syntastic_php_checkers = ['php']
-    let g:syntastic_enable_perl_checker = 1
-    let g:syntastic_perl_lib_path = ['./lib', './lib/auto']
-    let g:syntastic_perl_checkers = ['perl', 'podchecker']
+    " an alternative is syntastic - used this for ages, works pretty well but
+    " doesn't have the async thing going on:
 
-    " shut up, pylint:
-    let g:syntastic_python_checkers = []
+    " Plugin 'vim-syntastic/syntastic'
 
-    amenu Syntax.Toggle\ Syntastic :SyntasticToggleMode<CR>
+    " let g:syntastic_check_on_open = 1
+    " let g:syntastic_php_checkers = ['php']
+    " let g:syntastic_enable_perl_checker = 1
+    " let g:syntastic_perl_lib_path = ['./lib', './lib/auto']
+    " let g:syntastic_perl_checkers = ['perl', 'podchecker']
+
+    " " shut up, pylint:
+    " let g:syntastic_python_checkers = []
+
+    " amenu Syntax.Toggle\ Syntastic :SyntasticToggleMode<CR>
   " }}}
 
   " add option to show a diff when there's a swapfile on disk:
@@ -836,7 +842,7 @@ let mapleader = ","
   map <Leader>w/ :GGrep<Space>
 
   " create a new 'log' entry in vimwiki
-  map <Leader>l :e `fragment-vimwiki-log-path`<CR>
+  map <Leader>l :tab drop `fragment-vimwiki-log-path`<CR>
 
   " view log for current file
   " TODO: consider extending this to all files in some way...