latest ti patch 1.13.7
Clean build products

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https://github.com/spark/core-common-lib/commit/934950c5
Updated patch programmer functions
Fixed bogus MAC address issue due to nvmem_read() return value update
Latest build products for TI's official release 1.13.7 [SP Ver 1.28]
Bug fixes to restore WLAN Profiles and MAC Address after patching
Latest build after important bug fixes and core-common-lib updates
Doc update: Recommend using the spark-cli for applying the CC3000 patch for simple use cases
Merge pull request #1 from spark/master

Merge latest from spark:master