bookkeeping: version up; spelling; rm ununused dep feat

Cargo.lock

@@ -881,7 +881,6 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07bbe89c50d7a535e539b8c17bc0b49bdb77747034daa8087407d655f3f7cc1d"
 dependencies = [
  "futures-core",
- "futures-sink",
 ]
 
 [[package]]
@@ -915,10 +914,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "389ca41296e6190b48053de0321d02a77f32f8a5d2461dd38762c0593805c6d6"
 dependencies = [
  "futures-core",
- "futures-io",
- "futures-sink",
  "futures-task",
- "memchr",
  "pin-project-lite",
  "slab",
 ]
@@ -1820,7 +1816,7 @@ checksum = "f8dcc9c7d52a811697d2151c701e0d08956f92b0e24136cf4cf27b57a6a0d9bf"
 
 [[package]]
 name = "r53-ddns"
-version = "0.1.1"
+version = "0.2.0"
 dependencies = [
  "aws-config",
  "aws-sdk-route53",
@@ -1915,9 +1911,7 @@ dependencies = [
  "base64",
  "bytes",
  "encoding_rs",
- "futures-channel",
  "futures-core",
- "futures-util",
  "h2 0.4.13",
  "http 1.4.0",
  "http-body 1.0.1",