RJournal: change 'Address' Flex inset into a Style

This looks better and gives natural separation between multiple
authors.

lib/layouts/RJournal.layout

@@ -64,14 +64,17 @@ Style Abstract
 	EndFont
 End
 
-InsetLayout "Flex:Address"
-	LabelString           "Address"
+Style Address
+	Category	      FrontMatter
+	Margin                Static
 	LatexType             Command
-	LaTexName             address
-	LyXType               Custom
-	LabelFont
-	  Color               latex
-	EndFont
+	LatexName             address
+	ParSkip               0.4
+	BottomSep             1.5
+	ParSep                1.5
+	Align                 Left
+	AlignPossible         Block, Left, Right, Center
+	LabelType             No_Label
 End
 
 InsetLayout "Flex:Email"

lib/templates/RJournal.lyx

@@ -293,11 +293,7 @@ bibfiles "biblio"
 
 \end_layout
 
-\begin_layout Standard
-\begin_inset Flex Address
-status collapsed
-
-\begin_layout Plain Layout
+\begin_layout Address
 Author A
 \begin_inset Newline newline
 \end_inset
@@ -313,11 +309,6 @@ arg   "newline-insert newline"
 \end_inset
 
 address here
-\end_layout
-
-\end_inset
-
-
 \begin_inset Newline newline
 \end_inset
 
@@ -334,17 +325,8 @@ author.a@email
 
 \end_layout
 
-\begin_layout Standard
-\begin_inset Flex Address
-status collapsed
-
-\begin_layout Plain Layout
+\begin_layout Address
 Author B
-\end_layout
-
-\end_inset
-
-
 \begin_inset Newline newline
 \end_inset