Implemented Dilate and Erode filters. Also updated the example to show these two filters
Made following changes in this commit
1.) Swapped Erode and Dilate function.
2.) Proper Formatting
3.) Corrected the documentation.
Fixed a typo in the documentation for Filters._setPixels
Added space between braces ) and {
Merge branch 'filters' of github.com:dexter1691/p5.js
merging filters, fixing tab size
Merge branch 'master' of github.com:lmccart/p5.js