Course and Library keys cannot contiain !'()* special characters,
but the JS validation on the new course/library failed to detect
these characters.

`encodeURIComponent` is used to check the string for special characters,
but `encodeURIComponent` does not encode these characters: -_!~*'().
(see https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/encodeURIComponent)

The -_~ characters are allowed in course keys, but !'()* are not,
so add an explicit check for these characters to make sure a field
containing these characters does not pass the validation.

- Increase maximum focused logs to 5
- Import logs render for all entries in the focused gitlog view
- `+`/`-` toggle buttons for collapsible gitlogs

Added receipts_pdf.py

Used Paragraph for displaying a large body of text.

added the table

Line breaks in the para text. font size adjusted.

Improved the main table (alignments) and totals (converted to a table as well)

Converted the footer into a table, and allowed for pagination.

Added pagination to item data table.

Handled wrapping of long descriptions into multiple lines.

email attachment for both invoice and receipt

added the currency from the settings

Removed magic numeric literals and added meaningful variables.

Added initial set of substitutions from configuration

add defining logo paths via configuration

Removed font dependencies. Will use the system default fonts which appear good enough to me.

Alignment adjustments as per suggestions.

Fixed the pep8 violations. Added comments to styling

added the decimal points to the price values

Cleanup. Docstrings.

i18n the text in the pdf file

fix pep8/pylint issues

Changed the amounts from string to float.

Overrode the 'pdf_receipt_display_name' property in the OrderItem subclass Donation.

used the PaidCourseRegistration instead of the parent OrderItem to avoid course_id related exceptions.

quality fixes

added  the test cases for the pdf

made the changes in the pdf suggested by griff

updated the pdf tests to assert the pdf content

used the pdfminor library

fix quality issues

made the changes suggested by Will

added the text file that says "pdf file not available. please contact support"
 in case pdf fails to attach in the email

- Make the correct (latest) gitlog show up instead of the second
- Show gitlogs for each entry when viewing detailed information for
  single course

Co-Authored-By: Jean-Michel Claus <jmc@edx.org>
Co-Authored-By: Brian Talbot <btalbot@edx.org>
Co-Authored-By: Tim Babych <tim@edx.org>
Co-Authored-By: Oleg Marshev <oleg@edx.org>
Co-Authored-By: Chris Rodriguez <crodriguez@edx.org>

Improve Django Admin Panel for Course Access Roles. Related to ECOM-857. Allows internal staff to easily use the Django Admin view to create new finance and sales admins.

Use binary search instead of linear search.
Add tests for saving asset metadata lists.
Refactor to use common code across modulestores.

Update the redeem code schema

Updating the redeem code schema.

Adding migration file.

Adding course mode support when redeeming a code.

Conflicts:
	lms/djangoapps/shoppingcart/views.py

Add sales admin privileges for redeem code generation.

Making sure redeem code URLs work for verified courses.

pep8 violations

Code Review and Test Cleanup changes

Added tests, fixed tests.

Updating the boolean checks in ecommerce template

Allow configuration to override links to mobile app stores

   during course import/export. Uses external code_block_timer module.
   Also, add script which validates XML file against an XSD file.
   Uses the unittest framework - but is currently skipped.

When user update the response after editing he would
be unablt to report/vote/endorse the response. This
problem was caused due to double binding of event in
backbone view.

TNL-720

TNL-920