Removed dependency on `calendar.js`

Subcomponent calendar now generates month calendar by own (with use of
`moment`) and doesnt depend on `calendar.js`.
Fixed styles of calendar after previous changes

Added correct calendar layout with css table properties.
Fixed changing time at moment.js object
Disabled highlighting of days that are not at current month
Bumped version to 0.0.2, updated Readme, changed default visibility

Default visibility is false now, it has to be set explicitly to true to make picker
visible. Added example and description of some props to Readme.
0.0.2 - Added moment.js, changed default visibility, separated Month/Year navigation

- added taking month names and day names from `moment`
- year/month navigation separated into standalone component
- removed dependency on `calendar.js`, all neccessary function are got from moment.js
  and picker generates month calendar by itself
- disabled highlighting of days that are not at current month
- changed default visibility to hidden
- updated Readme: removed under construction, add little description
Merge branch 'master' into devel after release 0.0.2
Added tests for disability at calendar and navigation, improved Readme
Improved creating of cells at TimePicker and added its tests
Added spinners, fixed setting of time

Each cell has now own spinner for change its value. Setting time value
is now fully `moment.js` way.