foamToEnsight:
- add -noPatches option
- had incorrect part# when the internalMesh was not output
- case file is always ascii
foamToEnsightParts:
- fixed field selection bug,
no fields were selected when a single time-step was selected
- objectRegistry gets a rename() that also adjusts the dbDir
- cloud reworked to use static variables subInstance and defaultName.
This avoids writing "lagrangian" everywhere
string fixes
- avoid masking of std::string::replace in string.H
- avoid old strstream in PV3FoamReader
