Documentation update.
1. Renamed ceres.tex to ceres-solver.tex
2. Updated Solver::Options docs to reflect the recent changes.
3. Updated .gitignore to ignore ceres-solver.pdf
Change-Id: Iea19f8ff5fa1638a498422c8be5ed2e6da2950c9
diff --git a/docs/curvefitting.tex b/docs/curvefitting.tex
index ebd9e94..07ccd48 100644
--- a/docs/curvefitting.tex
+++ b/docs/curvefitting.tex
@@ -1,4 +1,4 @@
-%!TEX root = ceres.tex
+%!TEX root = ceres-solver.tex
\chapter{Fitting a Curve to Data}
\label{chapter:tutorial:curvefitting}
The examples we have seen until now are simple optimization problems with no data. The original purpose of least squares and non-linear least squares analysis was fitting curves to data. It is only appropriate that we now consider an example of such a problem\footnote{The full code and data for this example can be found in
