Add missing messages

Signed-off-by: Pekka Helenius <fincer89@hotmail.com>

bookstore/src/main/resources/messages.properties

@@ -69,12 +69,14 @@ page.title.browser.add             = Add book
 page.title.browser.edit            = Update book
 page.title.browser.error           = Error page
 page.title.browser.apiref          = API Reference help page
+page.title.browser.statsref        = Spring statistics help page
 
 page.title.webform.list            = Books
 page.title.webform.add             = Add new book
 page.title.webform.edit            = Update existing book
 page.title.webform.error           = Error
 page.title.webform.apiref          = API Reference help page
+page.title.webform.statsref        = Spring statistics data end point references
 
 page.text.book.publish.yes         = Yes
 page.text.book.publish.no          = No
@@ -116,6 +118,11 @@ page.text.apiref.author.edit.info  = Where suffix number 1 is an author ID
 page.text.apiref.links.title       = Direct link
 page.text.apiref.link              = Link
 
+page.text.statsref.commands        = Example commands
+page.text.statsref.desca           = This section covers Spring actuator statistics end point usage. For full information, see the official Spring docs\:
+page.text.statsref.descb           = <p><code>json_reformat</code> parses JSON from one-liner <code>stdin</code> to human-readable multi-line format. The executable is provided by\:</p>
+page.text.statsref.descc           = The tool is also available on various Linux distribution repositories, such as\:
+
 page.text.error                    = Error while processing your request
 
 page.auth.failure                  = Authentication failure\!