Adds vendor to .gitignore
Adds inital Html class and arrayToAttributes function
Adds tag creation and simple test. More tests to come soon
Merge branch 'develop' into html

Conflicts:
	.gitignore
Added more tests for Html
Adds comments and does a little refactoring
 Adds comments to TableBuilder and implements unit tests for TableBuilder
Updates TableBuilder name to Table
Adds basic render functionality and fixes bug with null keys in arr_set
Adds attributes to table elements
Adds support for attributes in Table structures