Merge pull request #54 from Redor/master

OF-831: A typo on Database Settings page during setup

src/i18n/openfire_i18n_en.properties

@@ -1891,7 +1891,7 @@ setup.datasource.settings.jndi_info=Use a datasource defined by your application
 setup.datasource.settings.embedded=Embedded Database
 setup.datasource.settings.embedded_info=Use an embedded database, powered by HSQLDB. This option \
         requires no external database configuration and is an easy way to get up and running quickly. \
-        However, is does not offer the same level of performance as an external database.
+        However, it does not offer the same level of performance as an external database.
 
 # Setup datasource standard Page