Change pkgconfig.rb to update 0.29.2 and strip binary

Fix error with environment variable assignment in mandb package

Update crew and install.sh to remove the need for sudo

Update php7 package from 7.1.4 to 7.1.5

Correct make dependencies need this to install chromebrew from scratch

Change to add check routine also

Update git to 2.13.0

Update pcre to 8.40 and optimized for size.

Update make to 4.2

update m4 to 1.4.18

Add source compile and check methods

add check method

(UPDATE) Remove python34 & replace with python3

Fix bz2.rb to solve several problems

update libxml2 to 2.9.4

Update libssh2 to 1.8.0

Update curl to 7.54.0

Update expat to 2.2.0

change method names to conform to ruby style guidelines

Change to not install static library.
Change to strip binaries and libraries.

Add compile methods
Correct dependencies

Add source compile methods

Add source compile methods

add check methods

Add source compile methods

Add check method
Correct the version number
Correct dependencies