add ode solver, tests and update docs

docs/build/html/_sources/modules.rst.txt

@@ -8,3 +8,5 @@ src
    date
    fit
    geometry
+   solver
+   solver_model

docs/build/html/_sources/solver.rst.txt

@@ -0,0 +1,7 @@
+solver module
+=============
+
+.. automodule:: solver
+    :members:
+    :undoc-members:
+    :show-inheritance:

docs/build/html/_sources/solver_model.rst.txt

@@ -0,0 +1,7 @@
+solver\_model module
+====================
+
+.. automodule:: solver_model
+    :members:
+    :undoc-members:
+    :show-inheritance:

docs/build/html/_sources/src.rst.txt

@@ -1,46 +0,0 @@
-src package
-===========
-
-Submodules
-----------
-
-src.data module
----------------
-
-.. automodule:: src.data
-    :members:
-    :undoc-members:
-    :show-inheritance:
-
-src.date module
----------------
-
-.. automodule:: src.date
-    :members:
-    :undoc-members:
-    :show-inheritance:
-
-src.fit module
---------------
-
-.. automodule:: src.fit
-    :members:
-    :undoc-members:
-    :show-inheritance:
-
-src.geometry module
--------------------
-
-.. automodule:: src.geometry
-    :members:
-    :undoc-members:
-    :show-inheritance:
-
-
-Module contents
----------------
-
-.. automodule:: src
-    :members:
-    :undoc-members:
-    :show-inheritance: