FLUID-5327: Converting ChangeApplier doc

Converted http://wiki.fluidproject.org/display/docs/ChangeApplier+API to a markdown page.
FLUID-5327: Change syntax for italics

Using _ instead of * for italics to avoid conflicts and confusion with ** for bold.
FLUID-5362: Added ComponentGrades.md

Converted http://wiki.fluidproject.org/display/docs/Component+Grades to markdown.
FLUID-5362: Added ComponentLifecycle.md

converted http://wiki.fluidproject.org/display/docs/Component+Lifecycle to markdown.
FLUID-5362: Added HowToUseInfusionIoC.md

converted http://wiki.fluidproject.org/display/docs/How+to+Use+Infusion+IoC to markdown
FLUID-5362: Starting to port the Infusion Event System docs.
FLUID-5362: Added ExpansionOfComponentOptions.md

converted http://wiki.fluidproject.org/display/docs/Expansion+of+Component+Options to markdown
FLUID-5362: Improving styling in Infusion Event System docs.
FLUID-5362: Added DeclarativeThisismInIoC.md

converted http://wiki.fluidproject.org/display/docs/Declarative+this-ism+in+IoC to markdown
FLUID-5362: Corrected syntax
FLUID-5362: Corrected syntax in a table
FLUID-5362: Added IoCSS.md
FLUID-5362: Adding Content to Infusion Event System docs.
FLUID-5362: Replaced <code> elements with single backticks.
FLUID-5362: Adding the remaining content to the Infusion Event System docs.
FLUID-5362: Styling tweaks to Infusion Event System docs.
FLUID-5362: Added ProgressiveEnhancement.md

Converted http://wiki.fluidproject.org/display/docs/Progressive+Enhancement to markdown
Merge branch 'master' into FLUID-5327
FLUID-5327: Updated based on code review.

Added more inline codifying.
Merge branch 'master' into FLUID-5362