JASATeX: update layout and template

- fix problem with natbib
- add a missing short title that was also already in the template

(patch for branch follows)

lib/layouts/jasatex.layout

@@ -6,14 +6,15 @@
 
 Format 41
 
-Columns                 1
-Sides                   1
-SecNumDepth             3
-TocDepth                3
-DefaultStyle            Standard
+Columns			1
+Sides			1
+SecNumDepth		3
+TocDepth		3
+DefaultStyle		Standard
+Provides natbib		1
 
 ClassOptions
-	FontSize		10|11|12
+	FontSize	10|11|12
 end
 
 Preamble
@@ -68,6 +69,10 @@ Style Title
 	ParSep			1
 	Align			Center
 	AlignPossible		Left, Right
+	Argument 1
+	  LabelString		"Short Title|S"
+	  Tooltip		"Short title that will appear in header line"
+	EndArgument
 	LabelType		No_Label
 	Font
 	  Size			Largest
@@ -117,8 +122,8 @@ Style "Alternative Affiliation"
 	LatexType		Command
 	LatexName		altaffiliation
 	Argument 1
-		LabelString   "Alternative Affiliation Option"
-		Tooltip       "Option to the alternative affiliation command"
+	  LabelString		"Affiliation Prefix"
+	  Tooltip		"A prefix like 'Also at '"
 	EndArgument
 End
 

lib/templates/JASA.lyx

@@ -1,4 +1,4 @@
-#LyX 2.0 created this file. For more info see http://www.lyx.org/
+#LyX 2.1 created this file. For more info see http://www.lyx.org/
 \lyxformat 413
 \begin_document
 \begin_header
@@ -19,7 +19,6 @@
 \font_osf false
 \font_sf_scale 100
 \font_tt_scale 100
-
 \graphics default
 \default_output_format default
 \output_sync 0
@@ -32,8 +31,8 @@
 \use_geometry false
 \use_amsmath 1
 \use_esint 1
-\use_mhchem 1
 \use_mathdots 1
+\use_mhchem 1
 \cite_engine basic
 \use_bibtopic false
 \use_indices false
@@ -76,28 +75,6 @@ nopreprint
 \end_inset
 
 
-\end_layout
-
-\begin_layout Standard
-\begin_inset Note Note
-status collapsed
-
-\begin_layout Plain Layout
-
-\series bold
-Note
-\series default
-: Using the citation style 
-\family sans
-Natbib
-\family default
- in the document settings would lead to LaTeX errors, because JasaTeX uses
- its own natbib mechanism.
-\end_layout
-
-\end_inset
-
-
 \end_layout
 
 \begin_layout Preprint number
@@ -159,11 +136,11 @@ Also at
 
 
 \begin_inset Note Note
-status collapsed
+status open
 
 \begin_layout Plain Layout
 This affiliation appears as footnote.
- The short title should be 
+ The prefix should be 
 \begin_inset Quotes eld
 \end_inset
 
@@ -362,7 +339,7 @@ Bla, bla
 placement h
 wide false
 sideways false
-status collapsed
+status open
 
 \begin_layout Plain Layout
 \begin_inset Caption