tweak gitignore for less crud
diff --git a/.gitignore b/.gitignore
index 52ad229..bd3b9bb 100644
--- a/.gitignore
+++ b/.gitignore
@@ -7,8 +7,6 @@
 bits/http*
 bits/ftp*
 bits/*.iso
-bits/npp*.7z
-bits/icu4c*
-bits/openssl-*
-bits/otp_src_*
-bits/zlib-*
\ No newline at end of file
+bits/*.7z
+bits/*.patch
+bits/a2session.txt