Fix several buffer overflows in TRXManager#7

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jduck wants to merge 2 commits intoRangeNetworks:masterfrom

Commits on Oct 24, 2014

Fix several stack buffer overflows in sendCommand variants
jduck
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Commits on Oct 25, 2014

Merge branch 'master' of https://github.com/RangeNetworks/openbts
jduck
committed