Fix memory corruption issues in wrapString()

Yeah, the "solution" is a bit cheap; basically we allocate 2x the amount
needed to hold the strings, however that's probably easier than realloc'ing
all the time when wrapping. Anyways, this function is not used for anything
performance-critical so it shouldn't matter too much.
Fix memory corruption errors in charStringAppend
Internal plugins now begin with "mrs_"

First of all, it's cute. :) Second of all, it would conflict with the new
syntax for loading shell plugins.
Call effStartProcess/effStopProcess on resume/suspend

Most plugins work fine without this, but according to the SDK this should be
called immediately following a resume/suspend call (respectively).
Hopefully correct implementation of time in PPQ/bars
Indenting
Return 1 for these ignored dispatcher calls
Use unsigned long for test blocksizes