fix lightzone start script on 32 and 64-bit architectures

On 32bit architecture lightzone fails when more than 4GB RAM because there is intrinsic java heap size limit set a bit more than 2GB. On 64-bit with installed 32-bit compat libs LD_PRELOAD is set with 32-bit libraries which obviously cannot be loaded by 64-bit java.
Release notes updated for 4.0.0
Merge branch 'patch-1' of https://github.com/zawel11/LightZone into development
Splash screen update
LightZone version of dcraw 9.18 (1.455)
Raw Tone Curve for CANON EOS 6D
Raw Tone Curves for Canon G12, Fuji X100s, Nikon 1 S1, Nikon Coolpix A, Nikon D5200 7100, Oly E-P3 E-PL1S E-PL2 E-PL3 E-PM1, Sony NEX-3N NEX-C3
Raw Tone Curves for Nikon 1 J3 and V2, and Pentax K-5 II and IIs
Raw Tone Curves for Canon 1D-X, Nikon D600, and Sony A99
Added old Channel Mixer, High-Pass Filter, and Tone Mapper tools as styles
Fixed #47 (D40X Raw Tone Curve has wrong file name)
Merge branch 'issue47' of https://github.com/ktgw0316/LightZone into development
Merge branch 'master' of https://github.com/Doug-Pardee/LightZone into development
Merge branch 'macosx' of https://github.com/ktgw0316/LightZone into development
Recognize newer backs (H25, IQ140, P20+) in Phase One probe
Epson R-D1 support - ERF-file code and Raw Tone Curve
Removed crop from Epson R-D1 Raw Tone Curve
Merge branch 'templates' of https://github.com/Doug-Pardee/LightZone into development
Merge branch 'phaseone' of https://github.com/Doug-Pardee/LightZone into development
Merge branch 'rtc' of https://github.com/Doug-Pardee/LightZone into development