update .gitignore

Author: cmaglie

.gitignore

@@ -1,15 +1,12 @@
 .DS_Store
-*.bz2
-*.tar.*
-*.zip
-objdir*
-toolsdir
-*-build
-autoconf-2.64/
-automake-1.11.1/
+objdir
+avrdude-6.3.tar.gz
 avrdude-6.3
+libelf-0.8.13.tar.gz
+libelf-0.8.13
+libusb-1.0.20.tar.bz2
 libusb-1.0.20
+libusb-compat-0.1.5.tar.bz2
 libusb-compat-0.1.5
-libelf-0.8.13
-avr
-tmp
+libusb-win32-bin-1.2.6.0.zip
+libusb-win32-bin-1.2.6.0