Release 0.4.0.

Changes since v0.3.16 includes:

* Template syntax:
  - Allow local ranges (i.e. `2..7`) in loop expressions.
  - Allow underscore rust names.  There is use for unused variables in
    templates, so allow names starting with underscore.
  - Issue #24 / PR #28: Allow logic operators in `@if ...` expressions.
  - Issue #25 / PR #27: Allow much more in parentehsis expressions.

* Improved examples:
  - A new design for the framework examples web page, using svg graphics.
  - Improve code and inline documentation of iron and nickel examples.
  - Add a similar example with the Gotham framework.

* Recognize `.svg` static files.
* Allocate much fewer strings when parsing expressions in templates.
* PR #26: use `write_all` rather than the `write!` macro in generated
  code, contributed by @kornelski
* Fix `application/octet-stream` MIME type.  Contributed by @kornelski.
* Use write_str/write_all when generating output.  Contributed by
  @kornelski.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "ructe"
-version = "0.3.16"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 description = "Rust Compiled Templates, efficient type-safe web page templates."
 documentation = "https://docs.rs/ructe"

examples/gotham/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "gotham-ructe"
-version = "0.1.0"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 
 build = "src/build.rs"

examples/iron/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "iron-ructe"
-version = "0.3.10"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 
 build = "src/build.rs"

examples/mime03/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "statics"
-version = "0.3.10"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 
 build = "src/build.rs"

examples/nickel/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "nickel-ructe"
-version = "0.3.10"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 
 build = "src/build.rs"

examples/simple/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "simple"
-version = "0.3.10"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 
 build = "src/build.rs"

examples/static-sass/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "statics"
-version = "0.3.10"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 
 build = "src/build.rs"

examples/statics/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "statics"
-version = "0.3.10"
+version = "0.4.0"
 authors = ["Rasmus Kaj <kaj@kth.se>"]
 
 build = "src/build.rs"