Docs: correct instructions for jscs-browser.js

Fixes #472
wikimedia: Add 'case' and 'typeof' to requireSpaceAfterKeywords

While it looks weird, code like the following is valid:

    x = typeof'foo';
    x = typeof/foo/;
    x = typeof[x];
    switch ( x ) {
        case'string':
            break;
    }

More common with parentheses:

    x = typeof(y);
    switch ( duration ) {
        case( 3600 * 24 ):
            break;
    }
disallowPaddingNewlinesInBlocks: fix false negatives with newline after
closing curly.
Clarify docs of use of jscs-browser.js
Wikimedia: Add integration test for Wikimedia preset

To help catch potential regressions against the standard.
Correct deal with exclusion and extensions

Fixes #488
Add tests for checker#checkFile methods
Exclude colon from binary rule of yandex preset

/cc @lemmy-
Prepare for version 1.5.7
1.5.7
Remove dev only line in readme at publish command

Also break publish commands on helper modules

Fixes #470
Make lints happy

Fix issues founded by JSCS and JSHint checks
Correct publish helper name

Per @mikesherov review
Remove another needless line from the doc