51_I2C_BH1750.pm: fixed poll_interval checking, added 0.1 min. intervall, added pod summary
51_I2C_BH1750.pm: fixed poll_interval checking, added 0.1 min. intervall, added pod summaryView Changes
Source: 51_I2C_BH1750.pm: fixed poll_interval checking, added 0.1 min. intervall, added pod summary (https://sourceforge.net/p/fhem/code/12274/)