Several fixes to error messages

+ Fixed line report
+ Minor improvements

Now lines start from 1 instead of 0

Version 1.4.2

+ Fixed invalid escape sentences that must be interpreted as literals

+ Version 1.4.1

+ Cleaned some stuff

+ Improved dumps method

+ Version 1.3.0

+ Added support for empty objects

+ Updated release version

+ Version 1.1.0

+ Changed version to 1.0.0

+ Changed version to 0.3.0