Make newline optional in docstrings.

Also use longstrings for readability, and updated class snippet to make superclass section optional.
Thanks to Pedro A. Aranda Gutiérrez.

Author: orbitalquark

init.lua

@@ -134,15 +134,23 @@ end
 local snip = snippets.python
 snip['.'] = 'self.'
 snip.__ = '__%1(init)__'
-snip.def = "def %1(name)(%2(arg)):\n\t%3('''%4\n\t'''\n\t)"
-snip.defs = "def %1(name)(self%2(, %3(arg))):\n\t%4('''%5\n\t'''\n\t)"
-snip.ifmain = "if __name__ == '__main__':\n\t%1(main())"
+snip.def = [[
+def %1(name)(%2(arg)):
+	%3('''%4'''
+	)]]
+snip.defs = [[
+def %1(name)(self%2(, %3(arg))):
+	%4('''%5'''
+	)]]
+snip.ifmain = [[
+if __name__ == '__main__':
+	%1(main())]]
 snip.class = [[
-class %1(ClassName)(%2(object)):
-	'''%3(documentation)
-	'''
-	def __init__(self%4(, %5(arg))):
-		%6(super(%1, self).__init__())]]
+class %1(ClassName)%2((%3(object))):
+	%4('''%5(documentation)'''
+
+	)def __init__(self%6(, %7(arg))):
+		%8(super(%1, self).__init__())]]
 snip.try = [[
 try:
 	%0