Fix out-of-bounds array access warning.

Even though this code is not really used without Roland Sylvain
integrals enabled, it still induces warnings.
Merge pull request #107 from QuLogic/warning-fix

Fix out-of-bounds warnings
fixed a minor range problem when Roland_Sylvain conditions are off
added Julien Derouillat's (from Maison de la Simulation, France) OpenMP support
Merge pull request #108 from komatits/devel

fixed a minor range problem when Roland_Sylvain conditions are off, and added Julien Derouillat's (from Maison de la Simulation, France) OpenMP support
more complete gfortran options
Merge pull request #110 from komatits/devel

more complete gfortran options
added flag REUSE_EXISTING_OBSERVATION_SURF to be able to reuse an existing observation surface from a previous run.
Also added directory utils/Roland_Sylvain_gravity.
Merge pull request #111 from komatits/devel

added flag REUSE_EXISTING_OBSERVATION_SURF to be able to reuse an existi...
added a comment
Merge pull request #112 from komatits/devel

added a comment
folded OpenMP lines that were longer than the standard
Merge pull request #113 from komatits/devel

folded OpenMP lines that were longer than the standard
cosmetic change to an OpenMP statement
Merge pull request #114 from komatits/devel

cosmetic change to an OpenMP statement