Removes category and tag page

Site has been designed such that individual page for each category or tag is not needed
Makes heading of each page self referential

User can click on them to reload
Removes SITEURL from url
Adds style for headings, anchors and lists
Adds zenburn theme for pygments style
Adds solarizedlight for syntax highlight

From https://pypi.python.org/pypi/pygments-style-solarized
Tweaks css of syntax higlights
Changes border of code
Rearranges CSS rules
Changes font family of tags heading
Changes style of tag in list of articles for each category
Shows leading zero in date of each article in the list for each category

For alignment
Indentation fix
Removes suffix from date in article template

No need to show 1st, 3rd etc. Plain date is enough
Use locale_date as defined in the conf, instead of modifying date format with strftime
Removes redundant line
Adds basic archive template
Uses html5 time tag for dates
Adds style rules for archives template
Improves typography of list of articles for each tag