snippets (new), Bash functions

- LaTeX: align, piecewise function
- snippets: tabstops, LaTeX environment
- .gitignore

sh.snippets

@@ -1,3 +1,14 @@
 snippet alias "Custom alias"
-alias ${1:name}="${2:command}"
-endsnippet 
+alias ${1:name}="${2:cmd}"
+endsnippet
+
+snippet 1lf "One-line function"
+${1:name}() { ${2:cmd} ; } 
+endsnippet
+
+snippet mlf "Multi-line function"
+${1:name}() { 
+	${2:cmd} 
+} 
+endsnippet
+