Chapter 01 - super simple stuff

Important things:

* ci::gl::draw commands (circle, rect, and ellipse);
* ci::gl::color( Color RBGA ) sets the fill / stroke (depending on the
nature of the object drawn);
* seems to be similar to OF in that there is no way to alter
StrokeWeight;
* due to all of the operator overloading, most of the chapter's syntax
does not apply;
* Vec2f.normalized() for normalized vector;
* Vec2f.length() for magnitude;
* ci::gl::pushMatrices() and ci::gl::popMatrices() replace the
pushMatrix() and popMatrix(), respectively;
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.gitignore corrections
Merge branch 'master' of https://github.com/ilzxc/The-Nature-of-Cinder
Chapter 2 started;

* "wind" forces in place;
* "gravity" is mass-dependent (heavier objects fall slower);
* friction is faked by multiplying the vector by -0.88 rather than by -1 @ window bounds;

- chapter does not involve much other than Vec2f manipulation, and should be done fairly quickly;
- Cranemouth is prioritized at the moment.
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A lot more circles;

* Properly working Gravity;
* Particle Grids;

- enums;
- nested < =?: >;

+ Xcode's .h & .cpp go into the root Project folder instead of in /Source/;
Merge branch 'master' of https://github.com/ilzxc/The-Nature-of-Cinder
Flushing all the work on Chapters (interrupted by migration to Cinder 0.8.5) and adding some non-book materials in ZZ_BonusWork.
added readme for ZZ_BonusWork
recovered missing files in /oscar/
Chapter 4, Examples 1 through 4.
Better inheritance
Corrections
Example 4.5: Paricle Repeller
Exercise 6: blue smoke
Finished with Chapter 4
Chapter 4 Done
chapter 4 done, one memory leak found, fixed
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