revert b17ef7f93880 (couldn't figure out better fix for the new PSTN bug), fix annoyance with clicking on save comments changing pages
fix not being able to select / see all elements in menus with tons of elements
fix bottom row of saves in the save browser being cut off
SConscript changes from Doxin - option for scons to copy environment variables CC, CXX, LD, CFLAGS
Minute performance improvement for Sign.getText
Spark sign tool, {b|sometext}, when the sign is clicked, the a spark will be created at the signs position. Also MouseDown events that draw particles from being triggered when clicking on a sign
Do not allow 't/c' signs to lack an ID
fix Sconscript
Remove old unfinished virtual machine and Lua bindings for it
reduce / prevent PROT in fusion even more
Merge branch 'develop' of https://github.com/simtr/The-Powder-Toy into develop
fix issue with FILT PHOT scattering
fix copy and paste in the same tpt window on SDL/Linux/X11
Merge pull request #178 from mniip/x11-clipboard

fix copy and paste in the same tpt window on SDL/Linux/X11
fix crosscompiling, --lua-dir was being ignored
--copy_env copies LIBPATH (test to fix windows crosscompile)
Reject {b:1|blah} signs
Only cancel click events clickable signs (not all signs)
fix sim.decoBox arguments, add a sim.canMove function
f5: reload sim, f2: screenshot f3: toggle extra HUD