[MINOR] stick_table: enable it for frontends too

A frontend may very well host a stick-table. In fact it will be useful
with connection throttling.
diff --git a/doc/configuration.txt b/doc/configuration.txt
index f2275f7..8366636 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -4998,7 +4998,7 @@
             [expire <expire>] [nopurge] [store <data_type>]*
   Configure the stickiness table for the current backend
   May be used in sections :   defaults | frontend | listen | backend
-                                 no    |    no    |   yes  |   yes
+                                 no    |    yes   |   yes  |   yes
 
   Arguments :
     ip         a table declared with "type ip" will only store IPv4 addresses.
@@ -5059,8 +5059,8 @@
                "server_id" type is also supported but it's only for internal
                use for stick and store directives.
 
-  The is only one stick-table per backend. At the moment of writing this doc,
-  it does not seem useful to have multiple tables per backend. If this happens
+  There is only one stick-table per proxy. At the moment of writing this doc,
+  it does not seem useful to have multiple tables per proxy. If this happens
   to be required, simply create a dummy backend with a stick-table in it and
   reference it.
 
diff --git a/src/cfgparse.c b/src/cfgparse.c
index d472f99..cf9a000 100644
--- a/src/cfgparse.c
+++ b/src/cfgparse.c
@@ -4877,7 +4877,7 @@
 				curproxy->be_rsp_ana |= AN_RES_STORE_RULES;
 
 			if (mrule->table.name)
-				target = findproxy(mrule->table.name, PR_CAP_BE);
+				target = findproxy(mrule->table.name, 0);
 			else
 				target = curproxy;
 
@@ -4910,7 +4910,7 @@
 			curproxy->be_rsp_ana |= AN_RES_STORE_RULES;
 
 			if (mrule->table.name)
-				target = findproxy(mrule->table.name, PR_CAP_BE);
+				target = findproxy(mrule->table.name, 0);
 			else
 				target = curproxy;
 
@@ -5471,8 +5471,7 @@
 	 * other proxies.
 	 */
 	for (curproxy = proxy; curproxy; curproxy = curproxy->next)
-		if (curproxy->cap & PR_CAP_BE)
-			stktable_init(&curproxy->table);
+		stktable_init(&curproxy->table);
 
 	/*
 	 * Recount currently required checks.