gitignore cleanup

* ignore typical backup files created by common editors
* move general ignore rules like "*.o" or "depend.mk" to top level gitignore
* ignore executables and test directories in target dir gitignore
  as these are local and there's no general catch-all pattern for them

.gitignore

@@ -1,4 +1,32 @@
-server/core/tags
-server/core/maxscale
-server/core/maxkeys
-server/core/maxpasswd
+# Object files
+*.o
+*.ko
+*.lo
+
+# Libraries
+*.lib
+*.a
+*.la
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# log files (from testing etc.)
+*.log
+
+# "make depend" generated stuff
+depend
+depend.mk
+
+# various auto-backup stuff
+*~
+*#
+.#*

client/.gitignore

@@ -0,0 +1,2 @@
+# binaries generated here
+maxadmin

log_manager/.gitignore

@@ -1,5 +0,0 @@
-*.o
-*.so
-*.so.*
-depend.mk
-

log_manager/test/.gitignore

@@ -0,0 +1,2 @@
+# binaries generated here 
+testlog

query_classifier/.gitignore

@@ -1,5 +0,0 @@
-*.o
-*.so
-*.so.*
-depend.mk
-

query_classifier/test/.gitignore

@@ -0,0 +1,2 @@
+# binaries generated here
+testmain

server/core/.gitignore

@@ -1,3 +1,4 @@
-*.o
+# binaries generated here
 maxscale
-depend.mk
+maxkeys
+maxpasswd

server/core/test/.gitignore

@@ -0,0 +1,2 @@
+#binaries generated here
+testhash

server/modules/monitor/.gitignore

@@ -1,3 +0,0 @@
-*.o
-*.so
-depend.mk

server/modules/protocol/.gitignore

@@ -1,3 +0,0 @@
-*.o
-*.so
-depend.mk

server/modules/routing/.gitignore

@@ -1,3 +0,0 @@
-*.o
-*.so
-depend.mk

server/modules/routing/readwritesplit/.gitignore

@@ -1,3 +0,0 @@
-*.o
-*.so
-depend.mk

server/test/.gitignore

@@ -0,0 +1,7 @@
+bin/
+Documentation/
+etc/
+lib/
+log/
+modules/
+mysql/

utils/.gitignore

@@ -1 +0,0 @@
-*.o