async+perf: appendix-B, tweaking wording
fix code at async ch2 Trying To Save Callbacks
Merge pull request #242 from cncolder/ap-ch2

fix code at async ch2 Trying To Save Callbacks
async+perf: ch2, tweaks to code samples
typo
Merge pull request #243 from 4thana/patch-6

typo
typo

use correct chapter name
typo

firs => first
Merge pull request #244 from 4thana/patch-7

typo
Merge pull request #245 from 4thana/patch-8

typo
async+perf: fixing sentence fragment, closes #246
typo

steam => stream
Merge pull request #247 from 4thana/patch-10

typo
async+perf: appendix-B, tweaks to wording, clarification, more on 'reactive' and 'coroutines'
async+perf: appendix-B, starting on 'CSP' section
async+perf: ch3, tweaks around 'promisory'
async+perf: clarifying terms
async+perf: appendix-B, finishing out 'CSP', cleaning up the rest of the content in the appendix'
async+perf: fixing a mistake/confusion around unwrapping with promise rejections, closes #249
async+perf: tweaks in ch2 and ch3, per suggestions in #248