fixed integer constant too large compilation error with gcc 4.3.2
optimize LteMiErrorModel::Mib ()
update RELEASE_NOTES and CHANGES.html for ns-3.18.1 release
update RELEASE_NOTES and CHANGES.html for new release
update comment to align with ns-3.18.1
doxygen warnings for wifi module
doxygen warnings for lte module
doxygen warnings for stats module
[doxygen] Rename examples classes "A"
added missing SpectrumErrorModel::GetTypeId ()
kill dead code in spectrum-error-model.h
merge
bug 1776: improve Csma CRC performance
bug 1777:  TapBridge address learning patch (modified by Tom Goff)
bug 1778:  TapBridge linkUp notification patch (modified by Tom Goff)
update RELEASE_NOTES and CHANGES.html for TapBridge changes
postfix bug 1776; add missing files