Add compilation guidelines for Fedora, and other notes

Other notes include packages required for python3 module and packages
required to use prebuilt system blas and lapack.
Cantera installation was tested to be successful on Fedora 20 and Fedora 22.

Resolves #324

doc/sphinx/compiling.rst

@@ -16,6 +16,7 @@ operating systems:
 
   * Ubuntu 12.04 LTS (Lucid Lynx) or newer
   * Debian 7.0 (Wheezy) or newer
+  * Fedora 20 or newer
 
 * Windows 7, or Windows 8 (32-bit or 64-bit versions)
 * OS X 10.9 (Mavericks) or OS X 10.10 (Yosemite).
@@ -39,14 +40,30 @@ Linux
 
       cython python-dev python-numpy python-numpy-dev python-setuptools
 
+* Building the python3 module requires the following libraries::
+
+      python3 python3-setuptools cython3 python3-numpy
+
+* For Fedora (version 22 or higher) users, the following packages should
+  be installed via the package manager::
+
+      gcc-c++ python scons sundials-devel blas-devel lapack-devel
+
+  If your Fedora version is lower than 22, the `sundials-devel` package is not
+  available, and you should build Sundials from source.
+
+  Python module required packages are::
+
+      python-setuptools python-devel Cython numpy
+
 * Checking out the source code from version control requires Git (install
   ``git``).
 
 * The minimum compatible Cython version is 0.19. If your distribution does not
   contain a suitable version, you may be able to install a more recent version
   using `easy_install` or `pip`.
 
-* Building the Fortran interface also requires gfortran or another supported
+* Building the Fortran interface also requires `gfortran` or another supported
   Fortran compiler.
 * Users of other distributions should install the equivalent packages, which
   may have slightly different names.