Asteca

Changed
- Remove forgotten print line.
- Print relevant information when data con not be read ([262](https://github.com/asteca/asteca/issues/262)).
- Fix bad range issue ([226](https://github.com/asteca/asteca/issues/226)).

Changed
- Add support for five tracks from the CMD service ([276](https://github.com/asteca/ASteCA/issues/276)).
- Read metallicity files with underscores instead of decimal dots ([277](https://github.com/asteca/ASteCA/issues/277)).
- Several important structural changes ([273](https://github.com/asteca/asteca/issues/273)): add `first_run` check, re-arrange and re-name modules, and move almost every part of the code into the `packages/` folder.

Changed
- Add support for CMD in the [HST/ACS WFC photometric system](http://www.stsci.edu/hst/acs) (requested by Daniel Arbeláez).

Changed
- Add support for three CMDs in the [Strömgren photometric system](https://en.wikipedia.org/wiki/Str%C3%B6mgren_photometric_system) (requested by J. Hughes Clark).
- Change likelihood density plots to [scatter plots](https://github.com/asteca/ASteCA/commit/6bac8749ba9b6b8c0fbaa2b226cca272e110e1cf) which show more information.
- Add extra condition for DA break: minimum 10% of the runs [must have passed](https://github.com/asteca/ASteCA/commit/7095c0cd043804cce25d27a9e16650ecf8a2f7a5).
- Fix bug with ['mag' mode](https://github.com/asteca/ASteCA/commit/272ed205d4beaaa8d3a10b2c664550140e238053) in 'Reduced membership', wouldn't run if the Bayesian DA was skipped.
- Fix minor bug ([241](https://github.com/asteca/asteca/issues/241)) when [printing KP results to screen](https://github.com/asteca/ASteCA/commit/62ffe4dad93fd5291900c08aa05af9e1c1cee5f2).

Changed
- Fixed rounding of errors that returned 0. values if error was larger than value (213).
- Check if `pip` module is installed + search for installed packages [globally, not locally](https://github.com/asteca/ASteCA/commit/3d04bb5247e001cf033a3df47e9f89e21c9dd2e5).
- Catch [badly formatted](https://github.com/asteca/ASteCA/commit/11ed705d9b23730ef8752d4553139c45700c0074) input data file.
- Restructure [King radii obtention](https://github.com/asteca/ASteCA/commit/4d201b76edace038d6651b7c43ac997728de1c82).
- [Correctly plot stars](https://github.com/asteca/ASteCA/commit/c3ccc376a5d46415ae45b9f2e4572be50b75847d) in cluster region, not used in best fit function.

Changed

(**Warning**: this release breaks compatibility with the previous version of the `params_input.dat` & `semi_input.dat` files)
- Models (ie: isochrone + extinction +distance modulus + mass distribution + binarity) are now evaluated _each time the GA selects them as a solution_, thus a new mass distribution is generated (186). This has a performance cost, but provides higher accuracy in the best model assignment process since a single model can now be evaluated with a slightly different mass distribution several times (only with GA, _Brute Force_ method will only process a model once).
- Added an _exit switch_ to the decontamination algorithm. It will stop iterations if the MPs converged to 0.1% tolerance values for all the stars in the cluster region (compared to the previous iteration). This speeds up the function considerably (185).
- The upper mass value in the IMF can now be [modified via the input parameters file](https://github.com/asteca/asteca/commit/4b1a897d69cf85b1c0263d738cf2132d9924eb9c).
- Code can now read `params_input_XX.dat` files when [using lazy parallelization](https://github.com/asteca/asteca/commit/f2508355d8136c2d5a6216093e6f9eda02bd99c1).
- Number of field regions [can now be set individually](https://github.com/asteca/ASteCA/commit/dc4c9223b0ec0a02904e30025eec50dfdc13637d) via the `semi_input.dat` file.
- [Added 'bb' binning method](https://github.com/asteca/ASteCA/commit/d35c5611708d249e730bef77b0ee14226cce14de) based on [Bonnato & Bica (2007)](http://adsabs.harvard.edu/abs/2007MNRAS.377.1301B). Sets bin widths of 0.25 and 0.5 for colors and magnitudes respectively.
- Fixed bug in `manual` mode when [displaying errors](https://github.com/asteca/asteca/commit/2e4b1d8f8a084e78bc56d52df494a796a6909de6).
- Fixed bug when narrow frames were plotted (168).
- Moved text box outside of synthetic cluster's plot to improve its visibility (205).
- Closed 13. Saha's W likelihood needs the number of model points to be fixed, which prevents it from being used when the mass varies. There's nothing to be gained by adding this function.
- Caveat dragged from version [0.1.2](https://github.com/asteca/asteca/releases/tag/v0.1.2) is [resolved](https://github.com/asteca/ASteCA/commit/ff3b240ec3d1b2339ce51cf262e71810a33b6517).