[v6r11] Fix Bugs for findFilesByMetadata

tolower does not exist. It is just "lower"
Use escapedValue['Value'] instead of escapedValue['Value']['Value'], which the assignment did.

Note for line 328: There seems to be something wrong there. "meta" is coming from the previous loop, but I guess this should be the value to the corresponding fileID?

escapeValue does not exist. should be escapedOperand