Remove debug code
Simplifies description string building

- More defensive with check
- Uses native php array function

Fixes #275
Docblock for instance variables
Spaces --> Tabs
More descriptive docblocks
Merge pull request #277 from CristianGiordano/issues/code-documentation

Docblock for instance variables
Merge 1.1.3
Undo gravity forms merge
Merge pull request #276 from CristianGiordano/issues/275-undefined-var

$key - Undefined variable
Whitespace
Brackets for #276
Fix missing day numbers in date ranges for custom views. #252
Version bump to 1.1.4