Disable the yoloproofs feature in Cargo.toml.

This means that it won't be possible to use the published crate to form
constraint system proofs (since the feature is not yet implemented).

.travis.yml

@@ -6,7 +6,8 @@ rust:
 
 env:
   - TEST_COMMAND=test EXTRA_FLAGS='' FEATURES=''
-  - TEST_COMMAND=test EXTRA_FLAGS='' FEATURES='yoloproofs'
+  # Disabled for now along with the yoloproofs feature.
+  #- TEST_COMMAND=test EXTRA_FLAGS='' FEATURES='yoloproofs'
   # run cargo bench with a filter that matches no benchmarks.
   # this ensures the benchmarks build but doesn't run them on the CI server.
   - TEST_COMMAND=bench EXTRA_FLAGS='"DONTRUNBENCHMARKS"' FEATURES=''

Cargo.toml

@@ -31,7 +31,8 @@ bincode = "1"
 
 [features]
 avx2_backend = ["curve25519-dalek/avx2_backend"]
-yoloproofs = []
+# Disable the yoloproofs feature for the released crate, so that it's not possible for someone to publish a crate using R1CS proofs yet.
+# yoloproofs = []
 
 [[bench]]
 name = "range_proof"

Makefile

@@ -1,4 +1,4 @@
-FEATURES := yoloproofs
+FEATURES := 
 
 doc:
 	cargo rustdoc --features "$(FEATURES)" -- --html-in-header docs/assets/rustdoc-include-katex-header.html