Use the "g" and "m" flags on the regular expression used to remove

escape characters. Added tests to ensure they are all removed.

Fixes #1.

archieml.js

@@ -177,7 +177,7 @@ function load(input) {
       // If we're appending to a multi-line string, escape special punctuation
       // by using a backslash at the beginning of any line.
       // Note we do not do this processing for the first line of any value.
-      value = value.replace(new RegExp('^(\\s*)\\\\'), "$1");
+      value = value.replace(new RegExp('^(\\s*)\\\\', 'gm'), "$1");
     }
 
     return value;

test/archieml.js

@@ -97,6 +97,8 @@
     equal(load('key:value\n\\\\:end\n:end').key, 'value\n\\:end', 'allows escaping initial backslash at the beginning of lines');
     equal(load('key:value\n\\\\\\:end\n:end').key, 'value\n\\\\:end', 'escapes only one initial backslash');
 
+    equal(load('key:value\n\\:end\n\\:ignore\n\\:endskip\n\\:skip\n:end').key, 'value\n:end\n:ignore\n:endskip\n:skip', 'allows escaping multiple lines in a value');
+
     equal(load('key:value\nLorem key2\\:value\n:end').key, 'value\nLorem key2\\:value', "doesn't escape colons after beginning of lines");
   });