Update 01.markmin

Corrected typo on line 337 "we discuss alterantive web servers" to "we discuss alternative web servers".
Errata per github issue #165
typo fix
typo
issue 171 TAG self-closing tags, thx lightdot
Update 06.markmin

SQLTABLE linkto clarification.
Update 06.markmin

Fix native SQLCustomType explanation.
Clarify usage of SQLFORM.grid(..., args=...)
Further clarify SQLFORM.grid(..., args=...)
added some documentation of auth.define_tables(...signature)
more clarity about redirect from a component
recaptcha and use_ssl for https logins
add task_status. More anchors. Promote scheduler headings
ajax=True, experimental Recaptcha argument for issue 1888
whoops repeating myself from another commit
Merge pull request #172 from Carzeh/master

Update 01.markmin
Merge pull request #177 from timrichardson/auth_signature

added some documentation of auth.define_tables(...signature)
Merge pull request #173 from timrichardson/errata_20140226

Errata per github issue #165
Merge pull request #174 from timrichardson/book_issue/171

issue 171 TAG self-closing tags, thx lightdot
Merge pull request #175 from mcamel/patch-1

Update 06.markmin