Bug 4619: Implement a stand-alone conversion function for paid time

Note that this function allows arbitrary conversion from paid to premium
and vice-versa, despite there being no current use case to convert from
premium time to regular paid time.  This is to allow for future
arbitrary paid time changes as desired.
Changes for Tropo Red and Purple styling of S2 site comment pages
Change color of .link elements in Tropo entries and comments so that only the actual anchor tags are styled, not surrounding elements and psuedo-elements.
Remove overflow:hidden from Tropo.
Bug 4619: remove unnecessary dependency, and fix regexes
Bug 4619: Move to DWS.pm for dw-free compatibility
Bug 4637 - Keywords lacking padding in some styles
http://bugs.dwscoalition.org/show_bug.cgi?id=4637
Remove now unneeded CSS padding.
Make styling for icons keywords match styling for entry tags.
Bug 4619: Modify package name
Merge pull request #6 from ninetyd/bug4637/iconspage_keywords_nf

Bug 4637 - Keywords lacking padding in some styles
Merge branch 'develop' of https://github.com/dreamwidth/dw-nonfree into Bug4619
Bug 4619: Whitespace cleanup
Re-add BML talkpage styling for dual support
Merge pull request #7 from teshiron/Bug4619

Bug 4619: Implement site-specific logic for converting time between paid and premium accounts
Bug 4639 - Misc. styles: remove superfluous list-style; always use in UL
http://bugs.dwscoalition.org/show_bug.cgi?id=4639
Remove unneeded list-style: none when UL or subsequent LI is displayed inline
Use list-style in UL rather than LIs
Bug 4612 - Make /styles and /styles/commons folders in /stc
http://bugs.dwscoalition.org/show_bug.cgi?id=4612
Move /stc/stylename/ files to /img/styles/stylename/
Bug 2936 - Make reverse_sortorder options work
http://bugs.dwscoalition.org/show_bug.cgi?id=2936
Allow display of content in reverse-chronological order
Expose options in nonfree styles
Merge pull request #9 from ninetyd/bug4639/misc_styles_list_style_nf

Bug 4639 - Misc. styles: remove superfluous list-style; always use in UL
Merge pull request #8 from momijizukamori/nuketalkread

Bug 647 - Nuketalkread
Merge pull request #10 from ninetyd/bug4612/folders_for_styles_nf

Bug 4612 - Make /styles and /styles/commons folders in /stc
Merge pull request #11 from ninetyd/bug2936/implement_reverse_order_nf

Bug 2936 - Make reverse_sortorder options work