This commit improves log message level for the barrier from DEBUG2 to DEBUG1.
This commit fixes potential memory leak of GTM.  The bug was reported
by Andrei Martsinchyk.   He also provided this fix.
This commit fixes disconnect handling at GTM proxy.   Andrei Martsinchyk reported
this bug and provided the fix.
This commit fixes GTM bug as reported by Nikhil Sontakke:

If the GTM Proxy wants multiple GXIDs, it sends a MSG_TXN_BEGIN_GETGXID_MULTI
message to the GTM. It sends a transaction count in that message.

The calculation of the range is off by one. It's perfectly possible that the
proxy asks for just 1 gxid. PFA, a patch to fix that. Luckily it causes no
other side effects AFAICS. Can avoid this for earlier branches.

He kindly provided the fix.
Fix a documentation bug about CREATE NODE. Bug ID: 3614713
Fix initdb usage and error message Bug ID: 3614712
This fixes GTM bug to create more than 1024 sequences.

Due to hardcoded array size, GTM can not send to standby
initial list of the defined sequences.
So if GTM standby connects to GTM where more than 1024
sequences defined, it causes memory corruption and segmentation
fault. The patch makes the array resizeable. For the same reason,
client is modified to accept sequence list of any size.
This fixes potential memory leak at GTM, reported and fixed by Nikhil Sontakke.
Reviewed by Koichi Suzuki.
This is to fix the messge level when GTM master connects to GTM standby
to DEBUG1 to reduce the number of unnecessary messages to the log.

Nikhil Sontakke reported the issue and provided the patch.
Correction of copyright.
Fix ALTER SCHEMA bug when renaming dependent objects

This fixes a segmentation fault, strangely this is correctly done in
REL1_1_STABLE and master.

Noticed by Andrei Martsinchyk
Merge branch 'origin/REL1_0_STABLE' into 'supported/REL1_0_STABLE'

Conflicts:
	src/gtm/main/gtm_thread.c
	src/gtm/main/gtm_txn.c