[Devel] new textops functions

[Daniel-Constantin Mierla]

Hello,

the development version of textops module has a new set of functions 
that work on the body of the SIP messages.

- search_body() - search a regular expression within the message's body
- search_append_body() - search a regular expression within the message's body and append a text after it
- replace_body() - replace a regular expression match with a text
- replace_body_all() - replace all regular expression matches with a text
- subst_body() - sed/perl like subst operation over the message's body

More details about these functions at:
http://openser.org/docs/modules/1.1.x/textops.html

Cheers,
Daniel