Updated Readme and added a Change log file

CHANGELOG.md

@@ -0,0 +1,27 @@
+# Change Log
+
+## [Unreleased]
+### Added
+### Changed
+### Fixed
+
+## [1.1.0] - 2015-01-26
+### Added
+- Support for non-hourly offset timezones 
+- Checks for valid expressions
+### Changed
+- Max Iterations no longer hardcoded for `getRunDate()`
+- Supports DateTimeImmutable for newer PHP verions
+### Fixed
+- Fixed looping bug for PHP 7 when determining the last specified weekday of a month
+
+## [1.0.3] - 2013-11-23
+### Added
+- Now supports expressions with any number of extra spaces, tabs, or newlines
+
+### Changed
+- Using static instead of self in `CronExpression::factory`
+
+### Fixed
+- Fixes issue [#28](https://github.com/mtdowling/cron-expression/issues/28) where PHP increments of ranges were failing due to PHP casting hyphens to 0
+- Only set default timezone if the given $currentTime is not a DateTime instance ([#34](https://github.com/mtdowling/cron-expression/issues/34))

README.md

@@ -68,15 +68,4 @@ Requirements
 
 - PHP 5.3+
 - PHPUnit is required to run the unit tests
-- Composer is required to run the unit tests
-
-CHANGELOG
-=========
-
-1.0.3 (2013-11-23)
-------------------
-
-* Only set default timezone if the given $currentTime is not a DateTime instance ([#34](https://github.com/mtdowling/cron-expression/issues/34))
-* Fixes issue [#28](https://github.com/mtdowling/cron-expression/issues/28) where PHP increments of ranges were failing due to PHP casting hyphens to 0
-* Now supports expressions with any number of extra spaces, tabs, or newlines
-* Using static instead of self in `CronExpression::factory`
+- Composer is required to run the unit tests