Update error handling to use Failure instead of Error-Chain, update d…

…ocumentation, update dependencies

.gitignore

@@ -1,2 +1,4 @@
 /target/
 **/*.rs.bk
+.idea/
+*.iml

Cargo.toml

@@ -9,9 +9,9 @@ repository = "https://github.com/djmcgill/form"
 [dependencies]
 quote = "0.3"
 getopts = "0.2"
-log = "0.3.8"
-env_logger = "0.4.3"
-error-chain = "0.11.0"
+log = "0.4.1"
+env_logger = "0.5.1"
+failure = "0.1.1"
 
 [dependencies.syn]
 version = "0.11.11"

README.md

@@ -1,19 +1,28 @@
+# Form
 ![crates.io badge](https://img.shields.io/crates/v/form.svg)
 
 A library for splitting apart a large file with multiple modules into the idiomatic rust directory structure, intended for use with svd2rust.
-Creates a lib.rs as well as a subdirectory structure in the target directory.
-It's advised (but not necessary) to use scalafmt afterwards.
-Usage:
+Creates a lib.rs as well as a subdirectory structure in the target directory. It does NOT create the cargo project or the cargo manifest file.
+
+It's advised (but not necessary) to use rustfmt afterwards.
+## Usage:
+Arguments:
 ```
-    -i, --input FILE    input file to read instead of stdin
+    -i, --input FILE    OPTIONAL: input file to read, defaults to stdin
     -o, --outdir DIR    set output directory
     -h, --help          print this help menu
 ```
 
-Does not create the cargo project or the cargo manifest file.
 
-TODO:
-    - better error handling
+Intended usage:
+```bash
+svd2rust -i FOO.svd | form -o ~/private/code/form/test/src
+```
 
-current usage:
-RUST_LOG=form=debug RUST_BACKTRACE=1 cargo run --release -- -i ~/private/code/form/resources/full-lib.rs -f -o ~/private/code/form/test/src
+Advanced usage:
+```bash
+cargo install form
+export RUST_LOG=form=debug
+export RUST_BACKTRACE=1
+form -i ~/private/code/form/resources/full-lib.rs -o ~/private/code/form/test/src
+```