Merge tag '0.3.0' into develop

0.3.0

- :memo: add list of suggested PHP packages
  See [PHPUnit Snippets](https://github.com/gerardroche/sublime-phpunit-snippets
- Change field names from expressions to "condition"
- Change echo string snippet to single quotes
- Change switch/case field names to "expression"
- Rename snippets using the tab trigger as the filename & organising them into scope specific folders
- :bugfix: doc_* snippets cursor exit point should be indented on line between braces
- :memo: Add basic documentation listing all available snippets
- Learned to insert script start tag at <?|
- Learned to insert namespace definition at ns|
- Learned to insert namespace use declaration at use|
- Learned to insert trait declaration at t|
- Learned to insert class declaration at c|
- Learned to insert function declaration at f|
- Learned to insert interface declaration at i|
- Learned to insert class method declaration at m|
- :memo: Add PHPUnit Snippets to suggested PHP package list

* tag '0.3.0':
  Bump version to 0.3.0
Merge branch 'master' into develop

* master:
  :memo: Format list of snippets description, then the trigger
:memo: Format list of snippets as a table
New snippet: foreachk - Foreach key-value statement
Change snippet: foreach - Now iterates over value rather than key-value

Use foreachk to iterate over key-value.
Change snippet: array - Simplified initialising an array
New snippet: vd - Dump information about a variable
New snippet: vde - Dump information about a variable and exit
New snippet: pr - Print human readable information about a variable
New snippet: pre - Print human readable information about a variable and exit
New snippet: rv - Return a variable statement
New snippet: flatten - Flatten an array
New snippet: am - Array map a closure
Change snippet: c - Add optional "final" modifier
Merge branch 'develop'

* develop:
  Change snippet: c - Add optional "final" modifier
  New snippet: am - Array map a closure
  New snippet: flatten - Flatten an array
  New snippet: rv - Return a variable statement
  New snippet: pre - Print human readable information about a variable and exit
  New snippet: pr - Print human readable information about a variable
  New snippet: vde - Dump information about a variable and exit
  New snippet: vd - Dump information about a variable
  Change snippet: array - Simplified initialising an array
  Change snippet: foreach - Now iterates over value rather than key-value
  New snippet: foreachk - Foreach key-value statement
  :memo: Format list of snippets as a table