pgbouncer - pgbouncer: Increase size of various startup-related buffers.

Log Message:
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Increase size of various startup-related buffers.

Also bring them under single define.

Modified Files:
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pgbouncer/src:
admin.c (r1.44 -> r1.45)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/admin.c?r1=1.44&r2=1.45)
proto.c (r1.21 -> r1.22)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/proto.c?r1=1.21&r2=1.22)
takeover.c (r1.16 -> r1.17)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/takeover.c?r1=1.16&r2=1.17)
varcache.c (r1.12 -> r1.13)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/src/varcache.c?r1=1.12&r2=1.13)
pgbouncer/include:
bouncer.h (r1.28 -> r1.29)
(http://cvs.pgfoundry.org/cgi-bin/cvsweb.cgi/pgbouncer/pgbouncer/include/bouncer.h?r1=1.28&r2=1.29)