Added mutex_unlock_ for unwind_handler signature compliance
Be less liberal about stack usage

We had many big frame sets, the biggest reported by gcc being 170kb.
Back in the days, 170kb for a frameset was a terrible mistake.
Not sure it still matter, but it won't hurt neither.
Addition of an empty parser for TDS (ms-sql)
Reading packet header
chg: LOG_CATEGORY_DEC does not add semicolon any more
fix: remove sql serializers (now unimplemented)
Split TDS between transport and messages (mostly)
parse PRE-LOGIN message
parse LOGIN7 messages
parse SQLBatch messages
parse (most of) RPCRequest
fix: SQL Batch
Start parsing results
Many fixes + LOGINACK
Add functional test for TDS parsing
Fix streambuf logs
Fix tds_msg parser writing anywhere in memory
Fix comments
Fix: get rid of useless backslash