Version bump

v.6.9.8 - Fix 19-byte overflow request on ATTiny. Fixes #48, thanks to …

…@wldyslw for his research

6.9.7 - Fix ATTiny, #48 - Thanks @wldyslw

v.6.9.6 - Add ESP32 and ESP32 web interface example

Merge pull request #47 from pk17r/master

Add parentheses on bitwise operation for correct operation

6.9.4 - Status internal register improvements for DS1307

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Docs - thanks to @rtek1000

Access to last one byte of RTCs RAM : PR #37

Add error check to refresh function. Now this function returns bool v…

…alue, false on errors: PR #36 Thanks @BenUniqcode