When parsing config, convert tabs to spaces rather than just removing them

[bob2517]

Sometimes this syntax is wanted:

func: checkVar "{varTestString}"
    {varTestBooleanTrue}
    {varTestBooleanFalse}
    {varTestBooleanDigitPositive}
    {varTestBooleanDigitNegative}
    {varTestEvaluatedNumber}
;

If the tabs are simply removed, the variables would end up being lumped together after evaluation so they won't get evaluated correctly when sent as parameters and it'll be essentially this {= "cheese"12-10truefalse =} which is just wrong. They would effectively look like this after parsing

func: checkVar "{varTestString}"{varTestBooleanTrue}{varTestBooleanFalse}{varTestBooleanDigitPositive}{varTestBooleanDigitNegative}{varTestEvaluatedNumber};

Convert all tabs to spaces when parsing. This is an important note to make when minifying too.

[bob2517]

A note on this: When minifying, tabs in component HTML should remain as tabs. All other tabs in the config can be converted to spaces.

[bob2517]

Fix on branch - closing.