Submit new version (v1.0.0)

[arsenk01]

When completing those items:

• Ability to reset the completed state #13
• SASS/SCSS updates #9
• Code enhancements #8
• Database updates #7
• Add a Proper (human friendly) README #14
• Upgrade project to Angular latest version #5
• Ability to add Category while searching for it in the "Add todo" dialog. #27

Submit the changes to the master branch.