Update cda_tool.py

fixed typo per #23
handles disabled feature recorder sets
Update exif_entry.cpp

Added capability to validate data individually for each entry tag type.  Added validation checks for entry tag types "PixelXDimension" and "PixelYDimension".
Update build_installer.nsi

Fixed launcher text to correctly indicate that the launcher launches BEViewer, not bulk_extractor.
Out-of-tree builds don't work with mingw32-configure, mingw64-configure,
so don't do that.
Adjust scan_lightgrep to new be13_api scanner_params phase enum values
Don't call yum without sudo. We're not compiling as root, right? Right?
Invoke yum once, not 52 times (!) for optional packages.
Typo.
Stop CONFIGURE_F18.sh if building any package fails.
Don't build shared libs we won't use.
Switched from old liblightgrep build system to autotools one. Only
64-bit liblightgrep builds right now.
Updated for ICU 51, which links properly for both 32-bit and 64-bit
mingw.
Simplified ICU build. 32- and 64-bit builds are nearly the same.
Re-enable 32-bit static liblightgrep builds. Pull from LightboxTech
repo, not my repo.
Cleanup.