Bump version to 0.1.2

This change bumps the version of the crate to 0.1.2. The following
notable changes have been made since 0.1.1:
- Added support for searching (and selecting) tasks via a sub-string of
  their summary
- Added support for selecting tabs by numbers
- Added support for directly selecting the previously active tab
- Editing a task summary to empty deletes the task
- Replaced deprecated std::env::home_dir with functionality from dirs
  crate
  - Added new dependency to dirs
- Enabled Rust 2018 edition lints
- Bumped gui dependency to 0.2

CHANGELOG.md

@@ -1,5 +1,5 @@
-Unreleased
-----------
+0.1.2
+-----
 - Added support for searching (and selecting) tasks via a sub-string of
   their summary
 - Added support for selecting tabs by numbers

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "notnow"
-version = "0.1.1"
+version = "0.1.2"
 authors = ["Daniel Mueller <deso@posteo.net>"]
 license = "GPL-3.0+"
 homepage = "https://github.com/d-e-s-o/notnow"

README.md

@@ -23,5 +23,9 @@ The program is in a well progressed development phase. A lot of the
 desired functionality exists, but not all is hooked up with the UI. More
 improvements are being worked on.
 
+**notnow** typically compiles with the most recent version of stable
+Rust. On compile errors please try upgrading to a more recent version
+first.
+
 [rust-lang]: https://www.rust-lang.org
 [gui]: https://crates.io/crates/gui