pgsql: Rename snapmgmt.c/h to snapmgr.c/h, for consistency with other

Log Message:
-----------
Rename snapmgmt.c/h to snapmgr.c/h, for consistency with other files.
Per complaint from Tom Lane.

Modified Files:
--------------
pgsql/src/backend/access/heap:
heapam.c (r1.252 -> r1.253)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/heap/heapam.c?r1=1.252&r2=1.253)
pgsql/src/backend/access/index:
indexam.c (r1.102 -> r1.103)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/index/indexam.c?r1=1.102&r2=1.103)
pgsql/src/backend/access/nbtree:
nbtpage.c (r1.107 -> r1.108)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/nbtree/nbtpage.c?r1=1.107&r2=1.108)
pgsql/src/backend/access/transam:
subtrans.c (r1.21 -> r1.22)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/subtrans.c?r1=1.21&r2=1.22)
transam.c (r1.75 -> r1.76)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/transam.c?r1=1.75&r2=1.76)
xact.c (r1.261 -> r1.262)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/access/transam/xact.c?r1=1.261&r2=1.262)
pgsql/src/backend/catalog:
heap.c (r1.329 -> r1.330)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/heap.c?r1=1.329&r2=1.330)
index.c (r1.294 -> r1.295)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/catalog/index.c?r1=1.294&r2=1.295)
pgsql/src/backend/commands:
cluster.c (r1.170 -> r1.171)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/cluster.c?r1=1.170&r2=1.171)
copy.c (r1.297 -> r1.298)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/copy.c?r1=1.297&r2=1.298)
explain.c (r1.170 -> r1.171)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/explain.c?r1=1.170&r2=1.171)
indexcmds.c (r1.172 -> r1.173)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/indexcmds.c?r1=1.172&r2=1.173)
portalcmds.c (r1.71 -> r1.72)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/portalcmds.c?r1=1.71&r2=1.72)
prepare.c (r1.83 -> r1.84)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/prepare.c?r1=1.83&r2=1.84)
tablecmds.c (r1.245 -> r1.246)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/tablecmds.c?r1=1.245&r2=1.246)
trigger.c (r1.228 -> r1.229)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/trigger.c?r1=1.228&r2=1.229)
vacuum.c (r1.369 -> r1.370)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/vacuum.c?r1=1.369&r2=1.370)
variable.c (r1.126 -> r1.127)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/commands/variable.c?r1=1.126&r2=1.127)
pgsql/src/backend/executor:
functions.c (r1.123 -> r1.124)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/functions.c?r1=1.123&r2=1.124)
nodeBitmapHeapscan.c (r1.23 -> r1.24)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/nodeBitmapHeapscan.c?r1=1.23&r2=1.24)
spi.c (r1.190 -> r1.191)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/executor/spi.c?r1=1.190&r2=1.191)
pgsql/src/backend/optimizer/util:
plancat.c (r1.142 -> r1.143)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/optimizer/util/plancat.c?r1=1.142&r2=1.143)
pgsql/src/backend/storage/ipc:
procarray.c (r1.42 -> r1.43)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/ipc/procarray.c?r1=1.42&r2=1.43)
pgsql/src/backend/storage/large_object:
inv_api.c (r1.129 -> r1.130)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/storage/large_object/inv_api.c?r1=1.129&r2=1.130)
pgsql/src/backend/tcop:
fastpath.c (r1.98 -> r1.99)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/fastpath.c?r1=1.98&r2=1.99)
postgres.c (r1.546 -> r1.547)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/postgres.c?r1=1.546&r2=1.547)
pquery.c (r1.121 -> r1.122)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/tcop/pquery.c?r1=1.121&r2=1.122)
pgsql/src/backend/utils/adt:
ri_triggers.c (r1.105 -> r1.106)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/ri_triggers.c?r1=1.105&r2=1.106)
txid.c (r1.5 -> r1.6)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/adt/txid.c?r1=1.5&r2=1.6)
pgsql/src/backend/utils/cache:
plancache.c (r1.16 -> r1.17)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/cache/plancache.c?r1=1.16&r2=1.17)
pgsql/src/backend/utils/time:
Makefile (r1.14 -> r1.15)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/time/Makefile?r1=1.14&r2=1.15)
pgsql/src/pl/plpgsql/src:
pl_exec.c (r1.205 -> r1.206)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/pl/plpgsql/src/pl_exec.c?r1=1.205&r2=1.206)

Added Files:
-----------
pgsql/src/backend/utils/time:
snapmgr.c (r1.1)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/time/snapmgr.c?rev=1.1&content-type=text/x-cvsweb-markup)
pgsql/src/include/utils:
snapmgr.h (r1.1)
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/snapmgr.h?rev=1.1&content-type=text/x-cvsweb-markup)

Removed Files:
-------------
pgsql/src/backend/utils/time:
snapmgmt.c
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/backend/utils/time/snapmgmt.c)
pgsql/src/include/utils:
snapmgmt.h
(http://anoncvs.postgresql.org/cvsweb.cgi/pgsql/src/include/utils/snapmgmt.h)