Merge pull request #31 from Circuitscape/tanmaykm

Making circuitscape a python package
trying out md version of manual
better formatting
better formatting
documented python package and api, corrected csrun.py
README.txt is no longer needed.
Merge branch 'master' of github.com:ViralBShah/Circuitscape
Update circuitscape_4_0.md

Experimented with spacing in code block with example habitat map. If this looks OK in other editors/html, I can make these changes throughout.
Added simple advanced mode test for network data

Based on this simple circuit shown in java applet at link below (just
one source and one ground).  Will add more complex problems.

http://www.falstad.com/circuit/#%24+1+4.9999999999999996E-6+10.20027730826997+39+5.0+50%0Ar+240+192+320+304+0+100.0%0Ag+400+192+400+240+0%0Ai+464+128+304+128+0+1.0%0Ar+320+304+400+192+0+100.0%0Ar+240+192+304+128+0+100.0%0Ar+304+128+400+192+0+100.0%0Ag+464+128+464+176+0%0Ax+298+106+311+112+0+24+0%0Ax+204+199+217+205+0+24+1%0Ax+311+343+324+349+0+24+3%0Ax+407+211+420+217+0+24+2%0A
Added mgNetworkVerify1 test to verify.py

Simple advanced mode test described in previous commit of input and
output files
Revert "README.txt is no longer needed."

This reverts commit 042407bc8d4458f5e60ed6339686f0adff10ed71.
added execute bit for files in bin folder
merged some common output methods.