No more stack trace inside trace::push for its arguments.
Tests passed, but need to handle text info as text, not as char const*.
Added datetime, date and time objects. Classes trace and trace::entry renamed to stacktrace and callinfo.
Changes in the datetime API.
Initialization changed to macro definition.
Refactoring of data::decimal method to retrieve integral and fractional components.
Added forgotten files. Added additional comment lines.
Filled most of text::data methods, but it is still incomplete!