Indonesian Rupiah (360) will have 2 decimals

(effective April 2014 - update with care before this date)
corrected spelling for Ghanaian Cedi

Thank you @emeka_onwuka !

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VEF defined twice (spotted by Chhil)

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added Bjarne Henriksen

Thanks for the ISOCurrency BigDecimal conversion suggestion!

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added parseFromISO87String and toISO87String

suggested in jpos-users by Bjarne Henriksen - THANK YOU!
Removes mutex
Update ISOCurrency.java
Update ISOCurrency.java
change addBundle to private