Fix powershellv2

[petemounce]

Powershell v2 (win7 vintage) doesn't have json cmdlets.

Got a report via chocolatey.org message that this doesn't work on win7. Cried. Replaced with simpler text file based approach for separating data from code.

Also fix package version fix notation bit of the automation to produce version numbers valid with chocolatey/nuspec.

I've already published a fixed 0.4.5-rc2 and 0.4.4 with this

• https://chocolatey.org/packages/bazel/0.4.4.20170306
• https://chocolatey.org/packages/bazel/0.4.5-rc2-20170306-124051

[bazel-io]

Can one of the admins verify this patch?

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[petemounce]

@meteorcloudy @laszlocsomor ping? Bot still needs a kick ;)

[laszlocsomor]

Thanks for this bugfix! I'm honestly not the best person to review PS code... Anyway, took a look, LGTM for what I can tell. Could you reply "I signed it!" to maybe nudge the bot? I know you did but let's try to convince the bot too :)

[petemounce]

I signed it!

[petemounce]

Or maybe it understands Klingon: qI' jIH!

[petemounce]

By the way - these are removed because there's no 32-bit build. These not being present causes chocolatey to print a friendly error to a 32-bit user saying it's not possible to install this there.

[laszlocsomor]

I think this looks good, will import now.

[petemounce]

Cool; thanks :)