Fix the smilestudent.js lint

[chrqls]

Relative issue: SMILEConsortium#38

[chrqls]

static/js/smilestudent.js: line 42, col 2, Missing semicolon.
static/js/smilestudent.js: line 116, col 2, Missing semicolon.
static/js/smilestudent.js: line 153, col 2, Missing semicolon.
static/js/smilestudent.js: line 158, col 23, Use '!==' to compare with ''.
static/js/smilestudent.js: line 158, col 42, Use '!==' to compare with ''.
static/js/smilestudent.js: line 158, col 61, Use '!==' to compare with ''.
static/js/smilestudent.js: line 158, col 80, Use '!==' to compare with ''.
static/js/smilestudent.js: line 158, col 108, Use '!==' to compare with ''.
static/js/smilestudent.js: line 158, col 133, Use '!==' to compare with ''.
static/js/smilestudent.js: line 159, col 2, Missing semicolon.
static/js/smilestudent.js: line 163, col 27, Use '!==' to compare with ''.
static/js/smilestudent.js: line 164, col 2, Missing semicolon.
static/js/smilestudent.js: line 177, col 2, Missing semicolon.
static/js/smilestudent.js: line 190, col 2, Missing semicolon.
static/js/smilestudent.js: line 209, col 2, Missing semicolon.
static/js/smilestudent.js: line 237, col 2, Missing semicolon.
static/js/smilestudent.js: line 244, col 2, Missing semicolon.
static/js/smilestudent.js: line 267, col 2, Missing semicolon.
static/js/smilestudent.js: line 316, col 2, Missing semicolon.
static/js/smilestudent.js: line 373, col 1, Mixed spaces and tabs.
static/js/smilestudent.js: line 371, col 51, Bad escaping of EOL. Use option multistr if needed.
static/js/smilestudent.js: line 372, col 14, Bad escaping of EOL. Use option multistr if needed.
static/js/smilestudent.js: line 373, col 50, Bad escaping of EOL. Use option multistr if needed.
static/js/smilestudent.js: line 396, col 21, Missing semicolon.
static/js/smilestudent.js: line 413, col 16, 'i' is already defined.
static/js/smilestudent.js: line 423, col 16, You might be leaking a variable (dice) here.
static/js/smilestudent.js: line 430, col 9, Comma warnings can be turned off with 'laxcomma'.
static/js/smilestudent.js: line 429, col 34, Bad line breaking before ','.
static/js/smilestudent.js: line 430, col 45, ['echoclientip'] is better written in dot notation.
static/js/smilestudent.js: line 449, col 17, 'clientip' is already defined.
static/js/smilestudent.js: line 450, col 76, ['pushmsg'] is better written in dot notation.
static/js/smilestudent.js: line 468, col 34, Bad line breaking before ','.
static/js/smilestudent.js: line 469, col 53, ['getresults'] is better written in dot notation.
static/js/smilestudent.js: line 478, col 76, ['postinquiry'] is better written in dot notation.
static/js/smilestudent.js: line 500, col 76, ['submitanswers'] is better written in dot notation.
static/js/smilestudent.js: line 521, col 83, ['getinquiry'] is better written in dot notation.
static/js/smilestudent.js: line 542, col 51, ['defaultpicurl'] is better written in dot notation.
static/js/smilestudent.js: line 560, col 75, ['smsg'] is better written in dot notation.
static/js/smilestudent.js: line 564, col 23, ['TYPE'] is better written in dot notation.
static/js/smilestudent.js: line 571, col 13, Unnecessary semicolon.
static/js/smilestudent.js: line 584, col 13, Unnecessary semicolon.
static/js/smilestudent.js: line 587, col 13, Unnecessary semicolon.
static/js/smilestudent.js: line 603, col 52, Missing semicolon.
static/js/smilestudent.js: line 641, col 23, '$next' is already defined.
static/js/smilestudent.js: line 646, col 23, 'a' is already defined.
static/js/smilestudent.js: line 647, col 25, 'evt' is already defined.
static/js/smilestudent.js: line 649, col 130, Missing semicolon.
static/js/smilestudent.js: line 656, col 23, '$next' is already defined.
static/js/smilestudent.js: line 661, col 23, 'a' is already defined.
static/js/smilestudent.js: line 662, col 25, 'evt' is already defined.
static/js/smilestudent.js: line 662, col 25, Too many errors. (69% scanned).

[chrqls]