SBMLSolver installation instructions

First build the SBMLSolver dependencies, these are in a separate git repo. You will install this into its own directory, reccomended to install to $HOME/local

https://github.com/AndySomogyi/sbmlsolver_dep
grab this repo from git, assuming you'll call it '$HOME/src/sbmlsolver'.
Create a build directory, $HOME/src/sbmlsolver_build, go to this dir and run ccmake,
```
ccmake ../sbmlsolver
```
If you're using an IDE, you can use CMake to generate proejct files like:
```
ccmake -G"Eclipse CDT4 - Unix Makefiles" ../sbmlsolver
```
Or XCode project files like
```
ccmake -G"Xcode" ../sbmlsolver
```
In the ccmake gui, select $HOME/local (or wherever you installed the dependencies to) as the value for the SBMLSOLVER_DEP_DIR build option.

Hit 'c' a few times to configure, and 'g' to generate the project file.

Now just build
```
make
```

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