Specify more relaxed dependency versions and bump the version

Cargo.lock

 [root]
 name = "cbindgen"
-version = "0.1.2"
+version = "0.1.3"
 dependencies = [
  "clap 2.23.2 (registry+https://github.com/rust-lang/crates.io-index)",
  "log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)",
- "syn 0.11.8 (registry+https://github.com/rust-lang/crates.io-index)",
+ "syn 0.11.10 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
@@ -63,7 +63,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "quote"
-version = "0.3.14"
+version = "0.3.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
@@ -73,17 +73,17 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 
 [[package]]
 name = "syn"
-version = "0.11.8"
+version = "0.11.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
- "quote 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)",
- "synom 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)",
+ "quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)",
+ "synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)",
  "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
 ]
 
 [[package]]
 name = "synom"
-version = "0.11.2"
+version = "0.11.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 dependencies = [
  "unicode-xid 0.0.4 (registry+https://github.com/rust-lang/crates.io-index)",
@@ -137,10 +137,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 "checksum kernel32-sys 0.2.2 (registry+https://github.com/rust-lang/crates.io-index)" = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
 "checksum libc 0.2.21 (registry+https://github.com/rust-lang/crates.io-index)" = "88ee81885f9f04bff991e306fea7c1c60a5f0f9e409e99f6b40e3311a3363135"
 "checksum log 0.3.7 (registry+https://github.com/rust-lang/crates.io-index)" = "5141eca02775a762cc6cd564d8d2c50f67c0ea3a372cbf1c51592b3e029e10ad"
-"checksum quote 0.3.14 (registry+https://github.com/rust-lang/crates.io-index)" = "7375cf7ad34a92e8fd18dd9c42f58b9a11def59ab48bec955bf359a788335592"
+"checksum quote 0.3.15 (registry+https://github.com/rust-lang/crates.io-index)" = "7a6e920b65c65f10b2ae65c831a81a073a89edd28c7cce89475bff467ab4167a"
 "checksum strsim 0.6.0 (registry+https://github.com/rust-lang/crates.io-index)" = "b4d15c810519a91cf877e7e36e63fe068815c678181439f2f29e2562147c3694"
-"checksum syn 0.11.8 (registry+https://github.com/rust-lang/crates.io-index)" = "37c279fb816210c9bb28b2c292664581e7b87b4561e86b94df462664d8620bb8"
-"checksum synom 0.11.2 (registry+https://github.com/rust-lang/crates.io-index)" = "27e31aa4b09b9f4cb12dff3c30ba503e17b1a624413d764d32dab76e3920e5bc"
+"checksum syn 0.11.10 (registry+https://github.com/rust-lang/crates.io-index)" = "171b739972d9a1bfb169e8077238b51f9ebeaae4ff6e08072f7ba386a8802da2"
+"checksum synom 0.11.3 (registry+https://github.com/rust-lang/crates.io-index)" = "a393066ed9010ebaed60b9eafa373d4b1baac186dd7e008555b0f702b51945b6"
 "checksum term_size 0.3.0 (registry+https://github.com/rust-lang/crates.io-index)" = "e2b6b55df3198cc93372e85dd2ed817f0e38ce8cc0f22eb32391bfad9c4bf209"
 "checksum unicode-segmentation 1.1.0 (registry+https://github.com/rust-lang/crates.io-index)" = "18127285758f0e2c6cf325bb3f3d138a12fee27de4f23e146cd6a179f26c2cf3"
 "checksum unicode-width 0.1.4 (registry+https://github.com/rust-lang/crates.io-index)" = "bf3a113775714a22dcb774d8ea3655c53a32debae63a063acc00a91cc586245f"

Cargo.toml

@@ -2,15 +2,15 @@
 name = "cbindgen"
 description = "A tool for generating C bindings to Rust code."
 license = "MPL-2.0"
-version = "0.1.2"
+version = "0.1.3"
 authors = ["Jeff Muizelaar <jmuizelaar@mozilla.com>", "Kartikaya Gupta <kats@mozilla.com>", "Ryan Hunt <rhunt@eqrion.net>"]
 repository = "https://github.com/rlhunt/cbindgen/"
 exclude = ["examples/**"]
 
 [dependencies]
-clap = "2.23.2"
+clap = "2"
 log = "0.3"
 
 [dependencies.syn]
-version = "0.11.8"
+version = "0.11"
 features = ["full"]