.jshintrc

perf: add --clear-revlog flag to branchmapload

Having the changelog index already loaded when loading the branchmap can have a
large impact on performance.

Example runs (large private repository):

hg perfbranchmapload -f base
! wall 0.116722 comb 0.120000 user 0.110000 sys 0.010000 (best of 59)
hg perfbranchmapload -f base --clear-revlogs
! wall 0.258246 comb 0.230000 user 0.220000 sys 0.010000 (best of 31)

{
    // Enforcing
    "eqeqeq"        : true,     // true: Require triple equals (===) for comparison
    "forin"         : true,     // true: Require filtering for..in loops with obj.hasOwnProperty()
    "freeze"        : true,     // true: prohibits overwriting prototypes of native objects such as Array, Date etc.
    "nonbsp"        : true,     // true: Prohibit "non-breaking whitespace" characters.
    "undef"         : true,     // true: Require all non-global variables to be declared (prevents global leaks)

    // Environments
    "browser"       : true      // Web Browser (window, document, etc)
}