* master: (86 commits)
Added |appendix| to doc
Added version to lib_spdif dependancy
Update README.rst
Update README.rst
Fixed for TDM slave loopback test (sync check)
Fixed build of I2S loopback test (API change to XUA_AudioHub - now takes all ports)
Scripted changelog update
Copyright comments
AN00248 doc updates
PDM resources no longer accessed globally
PDM mic resources no longer accessed globally
App note updates
Updates to AN00248
PDM related build fixes
NUM_PDM_MICS -> XUA_NUM_PDM_MICS
Added start of AN00248
PDM func rename
xua_pdm_mic.h included in xua.h
xua_pdm_mic.h moved to api
AN00246 now operational with lib_i2c
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