Minor tweaks

Adds a few language files. Minor bug fix.

Update version in code

0.5.2

Update version number

Update meta data version number

0.5.1

Update pypi meta data

PRs, lang fixes, bug fixes

• [NEW] struct_time addition. (mhworth)
• [NEW] Version grep (eirnym)
• [NEW] Default to ISO-8601 format (emonty)
• [NEW] Raise TypeError on comparison (sniekamp)
• [NEW] Adding Macedonian(mk) locale (krisfremen)
• [FIX] Fix for ISO seconds and fractional seconds (sdispater) (andrewelkins)
• [FIX] Use correct Dutch wording for "hours" (wbolster)
• [FIX] Complete the list of english locales (indorilftw)
• [FIX] Change README to reStructuredText (nyuszika7h)
• [FIX] Parse lower-cased 'h' (tamentis)
• [FIX] Slight modifications to Dutch locale (nvie)

Mostly language and typo fixes.

Contains commits from July 26th to Aug 12th. Normally this would be 0.5.0 but I feel that the changes are needed for those running 0.4.x Next release will be 0.5.0