add Cypress/Ramtron FRAM support + add readManufacturerId() function#14

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Commits on Jan 14, 2016

add Cypress/Ramtron FRAM support + add readManufacturerId() function
martinayotte
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Commits on Jan 15, 2016

fix readDeviceId() to get JedecID + Size
martinayotte
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Commits on Jan 16, 2016

add readStatus2() and readStatus3() + fix initialize() which required also status3 to be zero
martinayotte
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add comment to update header
martinayotte
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