fix a typo and lack of spaces in strings split across two lines
fix two aspects of latex printing: absolute values and imaginary unit
\imath is almost never what you want when rendering the imaginary unit
to latex. its purpose is so that you can put things like bar, vec, hat,
dot, tilde, etc. onto the character, none of which really make sense
for i. bar (representing complex conjugation) makes some sense, but
\bar{i} equals -i by definition, so this is a rare case.
revert change
More elegant way of solving exact equations
Do some type checking in ask(), see issue 2322
Add test for issue 2322
Update tutorial.ru.po & remove fuzzy marker (issue 3526)
Merge pull request #1952 from hacman/latex

fix two aspects of latex printing: absolute values and imaginary unit
Removed failing tests
Rectified error in Not code
fix errors in And and Or code
Merge pull request #1955 from Manoj-Kumar-S/speed

More elegant way of solving exact equations
Merge pull request #17 from smichr/boolargs

fix errors in And and Or code
let __new__ pass _args
restore arg tests
Merge pull request #18 from smichr/boolargs

Boolargs
allow for Atoms in arg tests

This allows tests which produce an atom from their input, e.g. And(2, 3) -> 1
update Boolean docstrings
Merge pull request #19 from smichr/boolargs

Boolargs
Tests for bugs in ask.