Added self to SIGNOFF.
Improved Robust Genetics.

Without: 33% chance to pick a bad mutation, otherwise picks any mutation
With (old): 22% chance to pick a bad mutation
With (new): 33% chance to pick a good mutation
fixed permissions from executable to read/write on disease.h
Extract most iuse firestarting logic into helper methods
Add a fire drill item (survivalcraft firestarter)
Update changelog for my major changes since 0.4
Merge pair of bugfix pull requests.
Merge mutation code refactor and adjustment of robust genetics algorithm.
Merge fire bow.
Make STL not crash if we use all of the available charges from the first item in inventory
Remove the hardcoded (and apparently arbitrary) cap on oter_id
Update test Makefile to build more robustly.
Add a batch of tests for key temperature equilibrium points.
Remove a C++11 line so that Cygwin can compile stuff
Fix dropping a weapon that doesn't fit in inventory
Batch of bugfixes.
Remove leftover variable left over after refactor.
Added short note describing test suite build instructions.
* fixed usb mission item deletion bug.
Merge remote-tracking branch 'upstream/master'