Updated plugins and added vim-abolish

sources_non_forked/vim-snippets/UltiSnips/tex.snippets

@@ -8,6 +8,12 @@ snippet "b(egin)?" "begin{} / end{}" br
 \end{$1}
 endsnippet
 
+snippet abs "abstract environment" b
+\begin{abstract}
+	$0
+\end{abstract}
+endsnippet
+
 snippet tab "tabular / array environment" b
 \begin{${1:t}${1/(t)$|(a)$|(.*)/(?1:abular)(?2:rray)/}}{${2:c}}
 $0${2/(?<=.)(c|l|r)|./(?1: & )/g}