Update Version.cmake

Fixed warning message when git is not available.
libbladeRF: Use sector_to_erase instead of 'i'

sector_to_erase is more clear than just erasing 'i'.  Also gets rid of a warning of an unused variable.
bladeRF-cli: ENABLE_INTERACTIVE_TECLA set to OFF if libtecla is not found
bladeRF-cli: Attempt to resolve uneccessary library dependency (Issue #69)
cli: Removed errant } causing linker issues.
Merge branch 'master' into rtucker_gnuradio_examples