Expose djangoDatetimePicker as jQuery method

[sterliakov]

PR Description

Simplify initialization of dynamically created inputs with jQuery convenience method.

Purpose

Added delayed initialization of pickers. It's useful when new inputs are added dynamically (fetched from ajax or created during DOM manipulation, for instance).

Approach

In current state we can only do jQuery.getScript(...) or copy code by hands. The former is really not convenient and requires additional http request and having static url somewhere in js code, the latter breaks DRY principle. This PR creates jQuery method djangoDatetimePicker which can be later called on input. Options parameter can be used to add options without manipulations with dp_config attribute and have higher priority (allows override).

Issues solved in this PR

What has Changed

• Created jQuery.djangoDatetimePicker(options) method

[monim67]

Thanks for the PR. Make set the indentation of the file to 2 spaces and submit the PR against 3.x branch.

[coveralls]

Pull Request Test Coverage Report for Build 1523952055

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 95.808%

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Totals
Change from base Build 924768809:	0.0%
Covered Lines:	160
Relevant Lines:	167

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💛 - Coveralls