[PDI-4325] Spoon carte status is not showing in Japanese when Japanese
is selected 

1. changed name org.gjt.mm.mysql.Driver -> com.mysql.jdbc.Driver
2. Repaired JP localization bug for PDI-4325
3. To eliminate possible future bugs related to localization, a new ant
target was created to check:
-Is localization files is available for all supported languages? (any
not existent key will automatically cause default english value or just
simple key name from properties file)
-Is localization properties files is java compatible .properties files?
(empty keys, incorrect characters, etc.). For this purposes external
library was added. See http://rscbundlecheck.sourceforge.net/ This case
using ant task full scan of source folders can be performed to detect
possible i18n bugs as it was described at PDI-4325.