Fix .gitignore. Add extra files to ignore, generated by Makefile

Author: Artur Zakirov

.gitignore

@@ -19,7 +19,7 @@
 .deps
 
 # Binaries
-/pg_arman
+/pg_probackup
 
 # Generated by test suite
 /regression.diffs
@@ -29,4 +29,9 @@
 # Extra files
 /datapagemap.c
 /datapagemap.h
+/logging.h
+/receivelog.c
+/receivelog.h
+/streamutil.c
+/streamutil.h
 /xlogreader.c