Fix Bugs for findFilesByMetadata

tolower does not exist. It is just "lower"
use escapedValue['Value'] instead of escapedValue['Value']['Value'], which the assignment did.
More bugs

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
use resolvedName instead of se

using se here can cause exception if SEs hide behind aliases.
Merge pull request #2152 from andresailer/patch-4

[v6r11] Bug fix: use resolvedName instead of se
Merge pull request #2150 from andresailer/patch-3

[v6r11] Fix Bugs for findFilesByMetadata
v6r11p20 notes
Bug fixed in __transformMetaParameterToData()