Release 0.2.0

See #26, release log:

• cd9c5d0 by @JavaCoDED78: Merge pull request #26 from Ja...
• a8ac00b by @JavaCoDED78: Merge pull request #25 from Ja...
• 2375e60 by @JavaCoDED78: #24 Fix Checkstyle
• 3e6ef7e by @JavaCoDED78: #24 Implement token invalidati...
• 334c282 by @JavaCoDED78: #24 Change Map to thread-safe ...
• 11287ee by @JavaCoDED78: Merge pull request #23 from Ja...
• c3bc164 by @JavaCoDED78: #22 Implement PersistentTokenS...
• 8214aeb by @JavaCoDED78: Merge pull request #21 from Ja...
• 4b4440b by @JavaCoDED78: #20 Implement isExpired(Date d...
• 2125831 by @JavaCoDED78: Merge pull request #19 from Ja...
• 8984e1c by @JavaCoDED78: #18 Add constructors
• 2336870 by @JavaCoDED78: Merge pull request #17 from Ja...
• 11178e7 by @JavaCoDED78: #16 Fix Javadoc and Update REA...
• 90e4927 by @JavaCoDED78: Merge pull request #15 from Ja...
• 7acce1c by @JavaCoDED78: Merge branch 'dev' into #14
• edaac3b by @JavaCoDED78: #14 Implement tests
• 713ca97 by @JavaCoDED78: #14 Implement Redis token stor...
• 363f513 by @JavaCoDED78: Update README.md

Released by Rultor 2.0-SNAPSHOT, see build log