Fixed issue #633 (multi-language mode
clang-tidy changes from sync
Removed dead TODO
Fixed issue #557
Added extra Init that takes a memory buffer or a filereader function pointer to enable read of traineddata from memory or foreign file systems. Updated existing readers to use TFile API instead of FILE. This does not yet add big-endian capability to LSTM, but it is very easy from here.
Jeff's fixes to pdf rendering
Added std:: to some stl types
More formatting fixes from clang tidy