Update libsrtp to upstream 1.5.0

srtp/.gitignore

Index: srtp/.gitignore
diff --git a/srtp/.gitignore b/srtp/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..b755e3f828c2e2b99938f06876eb95f0099c2bd1
--- /dev/null
+++ b/srtp/.gitignore
@@ -0,0 +1,48 @@
+# Misc crap
+*~
+old
+old?
+*.pc
+
+# Object files
+*.o
+
+# Libraries
+*.lib
+*.a
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+
+# srtp things
+Debug
+Makefile
+Root
+autom4te.cache
+config.log
+config.status
+crypto/include/config.h
+crypto/test/aes_calc
+crypto/test/cipher_driver
+crypto/test/datatypes_driver
+crypto/test/env
+crypto/test/kernel_driver
+crypto/test/rand_gen
+crypto/test/sha1_driver
+crypto/test/stat_driver
+crypto/test/rand_gen_soak
+tables/aes_tables
+test/dtls_srtp_driver
+test/rdbx_driver
+test/replay_driver
+test/roc_driver
+test/rtpw
+test/srtp_driver