expand .gitignore (Thanks madroach)

.gitignore

@@ -1,15 +1,27 @@
 *.o
 tags
+include/loglevels.h
 loglevels.tmp
 *.swp
 *.gcda
 *.gcno
 testcases/testsuite-*
 testcases/latest
-*.output
-*.tab.c
-*.tab.h
-*.yy.c
+src/*.output
+src/*.tab.*
+src/*.yy.c
+man/i3-msg.1
+man/i3-msg.xml
+man/i3-msg.html
+man/i3-nagbar.1
+man/i3-nagbar.xml
+man/i3-nagbar.html
+man/i3-wsbar.1
+man/i3-wsbar.xml
+man/i3-wsbar.html
+man/i3.1
+man/i3.xml
+man/i3.html
 *.tar.bz2*
 i3
 i3-input/i3-input