Phoebe

* Removes ldint from the weights in the computations of RVs and LPs.

* Fixes a bug where parameter limits were not being checked and out-of-limits errors not raised correctly.

* Fixes a bug where certain parameters would cause the meshing algorithm to fail to converge. With this fix, up to 4 additional attempts will be made with random initial starting locations which should converge for most cases.

comparison operators bugfix:
* Fixes a bug where comparisons between Parameters/ParameterSets and values were returning nonsensical values.
* Comparing ParameterSets with any object will now return a NotImplementedError
* Comparing Parameters will compare against the value or quantity, with default units when applicable.
* Comparing equivalence between two Parameter objects will compare the uniqueids of the Parameters, NOT the values.

optimization bugfix:
* Fixes a bug where automatic detection of eclipses was failing to properly fallback on only detecting the horizon.
* Introduces several other significant optimizations, particularly in run_compute.

bugfix release for get_orbits and lineprofiles for single star systems.