* Renamed all instances of "effect" to "survival".
* Renamed all instances of "ec" to "lc".
* Renamed `predict_mixture()` to `multi_tox()`.
* Renamed `predict_mixture()`, which was a temporary development name, to `multi_tox()`.
* The argument `proportion_ca` in the mixture model `multi_tox()` was renamed and its value reversed. It is now called `sa_contribution` and specifies the proportion of stress addition in the calculation of toxicant stress. To convert your code from the old version use this equation: sa_contribution = 1 - proportion_ca.
* Renamed `stress_tox_sam` to `stress_tox_sa` in the output of `multi_tox()`.
## Bugfixes
* Fixed a bug where `plot_stress()` with argument `which = NULL` would result in an error. Now it correctly draws the axes without data.
* Newly exported function `log10_ticks()` for calculating tick mark labels and positions on a base 10 logarithmic axis.
## New
* Exporte function `log10_ticks()` for calculating tick mark labels and positions on a base 10 logarithmic axis.
