Changes made as specified in #192

[hardikmodi1]

changes made as specified in #192

1. Score and popup should be responsive
Both score and popup are now responsive.
2. Text must be localized to adapt the current language
Language support added
3. Score during the game
I have removed the score from the game and it can be seen only at the end of the game.
4. Precision in accuracy
It is neccessary to add the precision as such a big number is not at all good to see for user thus two decimal point precision added.

[llaske]

• There is still issues on responsive. See for example this screen capture (popup not centered, scrollbar on the left of screen).

• The language support is hard coded, should use the webl10n library instead as mentioned earlier.

• Please clean commented lines and trace log in the source code.

• You must not include a fix for Speak activity into the same PR than a fix of Abecedarium if both are unrelated.

[hardikmodi1]

webl10n library is used and language is no longer hardcoded.
all commented lines and trace logs are removed.

[hardikmodi1]

score popup is now much more responsive.

[llaske]

No more pertinent