Remove all instances of unwrap() from config

Unwrapping inside the config file parsing can lead to some issues that
prevent us from falling back to a default configuration file.

One instance of that issue was mentioned in #1135.

Now all instances of `unwrap()` have been removed and replaced with
proper error handling. This will make the config more robust and
prevents live reload from silently breaking while alacritty is running.

This also fixes a few currently existing clippy issues.
Clippy added an additonal lint which complains about `MyStruct { field:
field }`.

These issues have been fixed, except for some false-positives and issues
in external macros which will probably be fixed with future updates (rust-lang-nursery/bitflags#149)

1 files changed, 1 insertions, 1 deletions

diff --git a/src/logging.rs b/src/logging.rs
index ff2a7735..421223e8 100644
--- a/src/logging.rs
+++ b/src/logging.rs
@@ -32,7 +32,7 @@ impl<T: Send + io::Write> Logger<T> {
     #[cfg_attr(feature = "clippy", allow(new_ret_no_self))]
     pub fn new(output: T, level: log::LevelFilter) -> Logger<io::LineWriter<T>> {
         Logger {
-            level: level,
+            level,
             output: sync::Mutex::new(io::LineWriter::new(output))
         }
     }