Stop marching indentation for try-catch blocks

This patch not only fixes the issue but also includes a test case
which has a lot of commentary explaining how CC Mode tries to indent
try-case blocks and the potential problems therein.  Our specific fix
in this patch is to add the keyword `catch' to the constant list
`php-block-stmt-2-kwds'.  The result is that it adds the keyword to
the CC Mode list `c-block-stmt-2-key' and that automatically takes
care of indenting try-catch blocks in situations where we put the
keywords and braces on the same lines together.

GitHub-Issue: 68

Author: Eric James Michael Ritz

php-mode.el

@@ -11,7 +11,7 @@
 (defconst php-mode-version-number "1.11"
   "PHP Mode version number.")
 
-(defconst php-mode-modified "2013-08-22"
+(defconst php-mode-modified "2013-08-26"
   "PHP Mode build date.")
 
 ;;; License
@@ -532,7 +532,7 @@ example `html-mode'.  Known such libraries are:\n\t"
 
 (defconst php-block-stmt-1-kwds '("do" "else" "finally" "try"))
 (defconst php-block-stmt-2-kwds
-  '("for" "if" "while" "switch" "foreach" "elseif"  "catch all"))
+  '("for" "if" "while" "switch" "foreach" "elseif" "catch" "catch all"))
 
 (defconst php-block-stmt-1-key
   (regexp-opt php-block-stmt-1-kwds))

tests/issue-68.php

@@ -0,0 +1,57 @@
+<?php
+
+/**
+ * GitHub Issue:    https://github.com/ejmr/php-mode/issues/68
+ *
+ * The 'catch' keywords should align with 'try' and not march
+ * off to the right side of the screen like they do in the bug
+ * report at the URL above.
+ *
+ */
+
+/* CC Mode uses the indentation for 'block-close' for these 'catch'
+ * statements.  However, that is assuming that the closing braces for
+ * 'try' and each 'catch' align with the keywords themselves.  If they
+ * do not then CC Mode gets confused and starts trying to indent
+ * 'catch' blocks as if they were function definitions and other
+ * strange things.
+ *
+ * The easiest way to deal with this is to make sure that the
+ * `c-block-stmt-2-key' list contains the string "catch", which we
+ * take care of in the definition of `php-block-stmt-2-key'.
+ */
+
+try {
+        $mongo = new \Mongo($dsn, array("replicaSet" => 'mat_replica'));
+} catch (\MongoConnectionException $e) {
+        throw $e;
+} catch (\Exception $e) {
+        throw $e;
+}
+
+/* CC Mode uses the indentation syntax for 'topmost-intro' for the
+ * 'catch' keywords in the remaining tests.
+ */
+
+try {
+        $mongo = new \Mongo($dsn, array("replicaSet" => 'mat_replica'));
+}
+catch (\MongoConnectionException $e) {
+        throw $e;
+}
+catch (\Exception $e) {
+        throw $e;
+}
+
+try
+{
+        $mongo = new \Mongo($dsn, array("replicaSet" => 'mat_replica'));
+}
+catch (\MongoConnectionException $e)
+{
+        throw $e;
+}
+catch (\Exception $e)
+{
+        throw $e;
+}