Revert "Release 1.14.0, using 'time' instead of 'chrono'"

This reverts commit de1e41a9136b8d812824bd047a05a0e305e9346d.

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "simple_logger"
-version = "1.14.0"
+version = "1.13.0"
 license = "MIT"
 authors = ["Sam Clements <[email protected]>"]
 description = "A logger that prints all messages with a readable output format"